Practice Test

Q1) Which is an ore of potassium ? Show Answer

Q2) Which of the following is radioactive ? Show Answer

Q3) Alkali metals impart color to Bunsen flame due to Show Answer

Q4) Which one of the following properties of alkali metals increase in magnitude as the atomic number rises ? Show Answer

Q5) The process associated with sodium carbonate manufacture is known as Show Answer

Q6) Compared with the alkaline earth metals, the alkali metals exhibit Show Answer

Q7) Strongest bond is between Show Answer

Q8) Molten sodium chloride conducts electricity due to the presence of Show Answer

Q9) Microcosmic salt is Show Answer

Q10) Which of the following has lowest thermal stability? Show Answer

Q11) Sodium reacts with water more vigorously than lithium because Show Answer

Q12) Which of the following properties is not true for an alkali metal ? Show Answer

Q13) Sodium chloride imparts golden yellow color to the Bunsen flame. This can be interpreted due to Show Answer

Q14) Which of the following compound is used in gun powder ? Show Answer

Q15) Which of the following statement is false regarding saline hydrides ? Show Answer

Q16) With the increasing in atomic weights, melting points of the alkali metals Show Answer

Q17) Which of the following statement is incorrect ? Show Answer

Q18) Which one of the following has highest electropositive character ? Show Answer

Q19) Which of the following has highest melting point? Show Answer

Q20) Which of the following electronic configurations corresponds to an element with lowest ionization energy ? Show Answer

Q21) Alkali metal that react with nitrogen directly to form nitride is Show Answer

Q22) oxone is Show Answer

Q23) Which of the following has lowest melting point ? Show Answer

Q24) On dissolving moderate amount of sodium metal in liquid ammonia at low temperature, which one of the following does not occur Show Answer

Q25) Photoelectric effect is maximum in Show Answer

Q26) Backing soda is Show Answer

Q27) Which of the following ions forms a hydroxide highly soluble in water ? Show Answer

Q28) Which of the following carbonate decompose on heating ? Show Answer

Q29) Which of the following are arranged in correct increasing order of solubilities ? Show Answer

Q30) When sodium chloride is dissolved in water, sodium ion is Show Answer

Q31) Which of the following atoms will have the smallest size? Show Answer

Q32) Which of the following compounds has the lowest anion to cation size ration ? Show Answer

Q33) The properties of lithium are similar to those of Mg. This is because Show Answer

Q34) A solution of sodium metal in liquid ammonia is strongly reducing due to the presence of Show Answer

Q35) Salt used for performing bead test in qualitative inorganic analysis is Show Answer

Q36) The chloride of an element A gives a neutral solution in water. In the periodic table, the element A belongs to Show Answer

Q37) Which of the following has largest size ? Show Answer

Q38) Which of the following statement is false for alkali metals? Show Answer

Q39) A combustible gas is liberated when caustic soda solution is heated with Show Answer

Q40) Caesium oxide will be Show Answer

Q41) Lithium shows diagonal relationship with Show Answer

Q42) In certain respects, lithium differs from other alkali metals.The main reason for this is Show Answer

Q43) When a substance A reacts with water it produces combustible gas B and a solution C in water.When another substance D reacts with this solution of C,it also produces the same gas B even on reaction with dilute sulphric acid at room temperature. A imparts a deep golden yellow color to a smokeless flame of Bunsen burner.A,B.C and D respectively are Show Answer

Q44) Anhydrous mixture of KF and HF contains which type of ions? Show Answer

Q45) The increasing order of atomic radius for the element Na, Rb,K and Mg is Show Answer

Q46) In organic reactions, sodium in liquid ammonia is used as...... Show Answer

Q47) When sodium is treated with sufficient oxygen/air, the product obtained is Show Answer

Q48) Which of the following is monovalent ? Show Answer

Q49) When washing soda is heated Show Answer

Q50) Potassium is kept in Show Answer

Q51) Chile saltpetre is Show Answer

Q52) sodium metal cannot be stored under Show Answer

Q53) Which is manufactured by electrolysis of fused NaCl? Show Answer

Q54) Caustizisation process is used for the preparation of Show Answer

Q55) Baking powder Has one of the following constituents Show Answer

Q56) Which one of the following has minimum value of cation/anion ratio ? Show Answer

Q57) The following are some of the methods commonly employed for the extraction of metal from their ores. Which of the following methods is generally employed for the extraction of sodium ? Show Answer

Q58) In Solvay ammonia process, sodium bicarbonate is precipitated due to Show Answer

Q59) Which compound will show the highest lattice energy? Show Answer

Q60) The reactivity of the alkali metal sodium with water, is made use of Show Answer

Q61) The alkali metals Show Answer

Q62) Identify the correct statement Show Answer

Q63) The Stability of the following alkali metal chlorides follows the order Show Answer

Q64) Which of the following reacts with water at high rate Show Answer

Q65) When NaOH is made, the gas released at the cathod is Show Answer

Q66) Which of the following reactions is not associated with the Solvay process of manufacture of sodium carbonate Show Answer

Q67) In view of their low ionization energies, the alakali metals are Show Answer

Q68) Aqueous NaCl solution is electrolyzed using platinum electrodes. What is the product formed at cathode? Show Answer

Q69) Super oxide of potassium is Show Answer

Q70) NaOH is prepared by the method Show Answer

Q71) Which of the following is correct ? Show Answer

Q72) The formula of nitre is Show Answer

Q73) Which causes nerve signals in animals? Show Answer

Q74) Select correct statement Show Answer

Q75) The alkali metals readily dissolve in liquid ammonia to give solution which are blue in color, if dilute. The blue color is believed to be due to Show Answer

Q76) Select correct statement Show Answer

Q77) Which of the following alkali metal hydroxides is the strongest base ? Show Answer

Q78) Which of the following oxides is formed when potassium metal is burnt excess air ? Show Answer

Q79) Sodium conduct electricity because Show Answer

Q80) The strongest reducing agent out of Na, K, Rb and Cs is Show Answer

Q81) Alkali metals are generally extracted by Show Answer

Q82) Which one of these is basic ? Show Answer

Q83) Which one of these is most reactive ? Show Answer

Q84) Which one of the elements reacts directly with nitrogen to form nitride ? Show Answer

Q85) Which of the following is known as fusion mixture ? Show Answer

Q86) Which of the following has the highest solubility product ? Show Answer

Q87) Which is the weakest reducing agent ? Show Answer

Q88) Which of the following sets can be called isoelectronic species ? Show Answer

Q89) Alkali metal display hydrogen from water forming bases due to the reason that Show Answer

Q90) Which of the following has the highest conductivity ? Show Answer

Q91) Crystalline sodium chloride is bad conductor of electricity because Show Answer

Q92) Which of the following does not illustrate the ammonia properties of Li? Show Answer

Q93) The valence shell electronic configuration of alkali metals is Show Answer

Q94) Which of the following has the least ionization potential ? Show Answer

Q95) An aqueous solution of sodium carbonate is alkaline because sodium carbonate is a salt carbonate is a salt of Show Answer

Q96) Which of the following is a man made element ? Show Answer

Q97) Fires that result from the combustion of alkali metals can be extinguish by Show Answer

Q98) On heating sodium metal in a current of dry ammonia, the compound formed is Show Answer

Q99) Which of the following alkali metal ions has lowest ionic mobility in aqueous solution ? Show Answer

Q100) Which one of the following metallic hydroxides does not dissolve hydroxide solution ? Show Answer

Q101) Smallest among these species is Show Answer

Q102) How does the ionization energy of first group elements vary ? Show Answer

Q103) The ionic conductance of following cation in a given concentration is in the order Show Answer

Q104) Lithium is strong reducing agent among alkali metals due to which of the following factor ? Show Answer

Q105) Nitrogen dioxide cannot be prepared by heating Show Answer

Q106) Molecular formula of Glauber's salt is Show Answer

Q107) The pair of compound which cannot exist together in solution is Show Answer

Q108) The metallic luster exhibited by solution is explained by Show Answer

Q109) An aqueous solution of sodium sulphate is electrolysed using inert electrodes. The products at the cathode and anode are respectively Show Answer

Q110) Sodium Sulphate is soluble in water but barium sulphate is sparing soluble because Show Answer

Q111) A fire of lithium, sodium and potassium can be extinguished by Show Answer

Q112) On strong heating sodium bicarbonate changes into Show Answer

Q113) Which of the following acts as an oxidising as well as reducing agent ? Show Answer

Q114) Among alkali metal salts, the lithium salts are the poorest conductor of electricity in aqueous solution because of Show Answer

Q115) Brine solution on electrolysis will not give Show Answer

Q116) The ionic mobility of alkali metal ions in aqueous solution is maximum for Show Answer

Q117) The compound(s) formed upon combustion of sodium metal in excess air is(are) Show Answer

Q118) Which one of the alkaline earth metals shows some anomalous behaviour and has the same electronegativity as aluminium? Show Answer

Q119) Which of the following carbonates decomposes on heating ? Show Answer

Q120) Magnesium keeps on burning in Show Answer

Q121) Which of the following are arranged in correct increasing order of solubilities ? Show Answer

Q122) Which of the following is different from the other three oxides ? Show Answer

Q123) Which of the following has highest electrode potential ? Show Answer

Q124) Which of the following is true for magnesium ? Show Answer

Q125) Which of the following has correct increasing basic strength ? Show Answer

Q126) The most electropositive among the alkaline earth metals is Show Answer

Q127) The descending order of the second ionization potential of Mg, Ca, and Ba is Show Answer

Q128) All the following substance react with water. The pair that gives the same gaseous product is Show Answer

Q129) Among the following oxides, the one which is most basic is Show Answer

Q130) A metal salt solution forms a yellow precipitate with potassium chromate in acetic acid, a white precipitate with dilute sulphuric acid but gave no precipitate with sodium chloride or iodide. The white precipitate obtain when sodium carbonate is added to the salt solution will consist of Show Answer

Q131) Which of the alkaline earth metals is the strongest reducing agent? Show Answer

Q132) White enamel of our teeth contain Show Answer

Q133) The correct order of increasing ionic character is Show Answer

Q134) The first ionization potential (eV) of Be and Ba respectively are Show Answer

Q135) The compound of alkaline earth metal have the following magnetic nature Show Answer

Q136) Mg is an important component of which biomolecule occurring extensively in living world ? Show Answer

Q137) Which of the following has maximum ionization energy? Show Answer

Q138) As the alkaline earth metals (except Be) tend to lose their valence electron readily, they act as Show Answer

Q139) Which is insoluble in water? Show Answer

Q140) Thermal stability of alkaline earth metal carbonates decrease in the order Show Answer

Q141) Which one of the following statement is correct for alkaline earth metals? Show Answer

Q142) The alkaline earth metals Ba, Sr, Ca and Mg may be arranged in the order of their decreasing first ionisation potential as Show Answer

Q143) Melting point of calcium halides decrease in the order Show Answer

Q144) Which of the following will liberate hydrogen by its reaction with hydrochloric acid ? Show Answer

Q145) Which of the following statement is false ? Show Answer

Q146) The solubility of sulphates in water, down the B e group is Be > Mg > Ca > Sr > Ba. This is due to Show Answer

Q147) Metals belonging to the same group in the periodic table are Show Answer

Q148) The number of covalent bonds formed by beryllium is Show Answer

Q149) A major constituent of portland cement (except lime) is Show Answer

Q150) Setting of cement is an Show Answer

Q151) Which of the following is commonly used in a laboratory dessicator ? Show Answer

Q152) The wire of flash bulb is made up of Show Answer

Q153) In India at he occasion of marriages, the fire works give green flame. which one of the following radical may be present ? Show Answer

Q154) Plaster of Pairs hardens by Show Answer

Q155) Epsom salt is the hydrate of one of the following Show Answer

Q156) Which of the following substance is used in the laboratory for fast drying of neutral gases ? Show Answer

Q157) Which of the following metal ions plays an important role in muscle contraction ? Show Answer

Q158) Presence of which of the following salts increase the rate of setting of plaster of Paris ? Show Answer

Q159) Identify the correct statement Show Answer

Q160) Calcium is obtained by the Show Answer

Q161) The difference of water molecules in gypsum and plaster of Paris is Show Answer

Q162) Plaster of Paris is used Show Answer

Q163) On heating quick lime with coke in an electric furnace, we get Show Answer

Q164) Initial setting of cement is mainly due to Show Answer

Q165) As the nuclear increase from neon to calcium, the orbital energies Show Answer

Q166) Carnallite on electrolysis give Show Answer

Q167) Setting of plaster of Paris involves Show Answer

Q168) Out of the following elements which one do you expect to be most reactive chemically? Show Answer

Q169) Portland cement is manufactured by using Show Answer

Q170) Which of the following sulphates has higher solubility in water? Show Answer

Q171) The chemical composition of plaster of Paris is Show Answer

Q172) Which of the following compound of cement sets at the slowest rate ? Show Answer

Q173) Melting point is lowest for Show Answer

Q174) Which of the following imparts brick red colour to the flame ? Show Answer

Q175) Magnesium can be obtained by Show Answer

Q176) Which of the following is the strongest base ? Show Answer

Q177) Limestone is not used in which of the following manufacturing processes ? Show Answer

Q178) Blanc fire used in paints is Show Answer

Q179) The formula of calcium cyanamide is Show Answer

Q180) A firework gives out crimson colored light. It contains a salt of Show Answer

Q181) The carbide of which of the following metals on hydrolysis given allylene or propyne ? Show Answer

Q182) Which of the following show high tendency to form a peroxide? Show Answer

Q183) Which of the following has the lowest melting point ? Show Answer

Q184) Which of the following on thermal decomposition yield a basic as well as an acidic oxide ? Show Answer

Q185) From which mineral Ra is obtained Show Answer

Q186) Salt used as a purgative is Show Answer

Q187) Ra is placed at the bottom of alkaline earth metals. The element should Show Answer

Q188) Mortar is mixture of Show Answer

Q189) Which alkaline earth metal nitride is volatile? Show Answer

Q190) Which chloride is covalent and soluble in ether? Show Answer

Q191) Celestite is an ore of Show Answer

Q192) Gypsum is added to clinker during cement manufacture to Show Answer

Q193) Which ion forms hydroxide easily soluble in water? Show Answer

Q194) Beryllium shows diagonal relationship with aluminium. Which of the following similarity is incorrect ? Show Answer

Q195) Barium is extracted from its ore Show Answer

Q196) Which alkaline earth metal forms complex salts ? Show Answer

Q197) In order to differentiate between the metals A and B, it has been observed that both oxide but B also forms nitride, When both burn in air. So A and B are Show Answer

Q198) Among the metals Be, Mg, Ca and Sr of group 2(or group IIA) of the periodic table, the least ionic chloride would be formed by Show Answer

Q199) Which of the following salts does not impart a color to the flame ? Show Answer

Q200) Which of the following is least soluble in water ? Show Answer

Q201) Dolomite has the Composition Show Answer

Q202) Alkaline earth metals form ions of the general formula Show Answer

Q203) The one which does not show variable valency is Show Answer

Q204) The Characteristic outer electronic configuration of alkaline earth metals is Show Answer

Q205) Which one is not dissolved by dilute hydrochloric acid is Show Answer

Q206) A chloride dissolved appreciably in cold water. when placed on a Pt wire in Bunsen flame, no distinctive color is noted which cation could be present ? Show Answer

Q207) The right order of solubility of sulphates of alkaline earth metals in water is Show Answer

Q208) The first ionization energies of alkaline earth metals are higher than those of the alkali metals. This is because Show Answer

Q209) Among the alkaline earth metals, the element forming predominantly covalent compound is Show Answer

Q210) Which of the following is incorrect? Show Answer

Q211) In curing cement plaster, water is sprinkled from time to time. This helps in Show Answer

Q212) Several blocks of magnesium are fixed to the bottom of a ship to Show Answer

Q213) The solubility of carbonates decrease down the magnesium group due to decrease in Show Answer

Q214) The compound insoluble in acetic acid is Show Answer

Q215) Property of the alkaline earth metals that increase with their atomic number is Show Answer

Q216) The set representing the correct order of first ionization potential is Show Answer

Q217) Which of the following process is used in the extractive metallurgy magnesium ? Show Answer

Q218) For two ionic solids CaO and KI, Identify the wrong statement among the following ? Show Answer

Q219) The number and type of bonds between two carbon atoms in calcium carbide are Show Answer

Q220) When chlorine is passed through concentrated solution of KOH, the compound formed is: Show Answer

Q221) Which of the following does not illustrate the anomalous properties of lithium? Show Answer

Q222) Statement 1 : Gypsum is added to cement to increase its rate of setting.
Statement 2 : Gypsum is calcium sulphate hemihydrates. Show Answer

Q223) A white solid reacts with dil. HCl to give colourless gas that decolourises aqueous bromine. The solid is most likely to be: Show Answer

Q224) Statement 1 : Radium is most abundant s block elements.
Statement 2 : S block elements are non radioactive in nature. Show Answer

Q225) Out of the following metals that cannot be obtained by electrolysis of the aqueous solution of is salts is Show Answer

Q226) Statement 1 : Group 1 elements are known as the alkali elements.
Statement 2 : S orbital can accommodate only two electrons. Show Answer

Q227) The correct increasing covalent character is: Show Answer

Q228) Statement 1 : S block elements are highly electropositive.
Statement 2 : The valance electrons present in s orbital are loosely held. Show Answer

Q229) Portland cement has ….in its composition: Show Answer

Q230) The reaction of sodium with water is highly exothermic. The rate of reaction is lowered by: Show Answer

Q231) Which of the following carbonates decomposes at lowest temperature? Show Answer

Q232) Which out of the following compounds is called photographer's fixer? Show Answer

Q233) The metal present in Grignard reagent is: Show Answer

Q234) The characteristic not related to alkali metal is Show Answer

Q235) A colourless salt gives violet colour to Bunsen flame and also turns moisture litmus paper blue. It is: Show Answer

Q236) Which possesses highest lattice energy? Show Answer

Q237) Hypo is used in: Show Answer

Q238) Which of the following has the largest size in aqueous solution? Show Answer

Q239) On prolonged exposure to air, sodium finally changes to: Show Answer

Q240) Which of the following is an epsom salt? Show Answer

Q241) Which of the following statements are correct for alkali metal compounds?
(i) Superoxides are paramagnetic in nature.
(ii) The basic strength of hydroxides increases down the group.
(iii) The conductivity of chlorides in their aqueous solutions decreases down the group.
(iv) The basic nature of carbonates in aqueous solutions is due to cationic hydrolysis. Show Answer

Q242) Flash bulbs contain wire or foil of Mg packed in an atmosphere of: Show Answer

Q243) The main product obtained when a solution of sodium carbonate reacts with mercuric chloride is Show Answer

Q244) Which on mixing with water gives a hissing sound and becomes very hard? Show Answer

Q245) Milk of magnesia is: Show Answer

Q246) What would you observe if excess of dilute NaOH solution is added and shaken with an aqueous solution of aluminium chloride? Show Answer

Q247) Molecular formula of Glauber's salt is Show Answer

Q248) Ca on exposure in moist air forms a layer on surface of: Show Answer

Q249) Which of the following is different from the other three? Show Answer

Q250) Dead burnt is: Show Answer

Q251) Salt used as a purgative is: Show Answer

Q252) Tin dissolves in boiling caustic soda solution because of the formation of soluble: Show Answer

Q253) Alkali metals contain: Show Answer

Q254) The wire of flash bulbs are made up of: Show Answer

Q255) Addition of excess of sodium hydroxide solution to a solution of nickel sulphate results in the formation of a: Show Answer

Q256) Several blocks of Mg are fixed to the bottom of a ship to: Show Answer

Q257) Sodium sulphate is soluble in water whereas barium sulphate is sparingly soluble because: Show Answer

Q258) Baking soda is: Show Answer

Q259) NaCl crystals possesses: Show Answer

Q260) The carbonate that will not decompose on heating is Show Answer

Q261) Which statement is false for alkali metals? Show Answer

Q262) When washing soda is heated Show Answer

Q263) Most abundant salt of sodium in nature is: Show Answer

Q264) Which one of the following substances is used in the laboratory for a fast drying of neutral gases? Show Answer

Q265) Which alkaline earth metal forms peroxide on burning in air? Show Answer

Q266) Sodium metabisulphite is not: Show Answer

Q267) In the manufacture of sodium hydroxide, byproduct obtained is: Show Answer

Q268) Which of the following substances is used in the laboratory for fast drying of neutral gases? Show Answer

Q269) Alkaline earth metal oxide having the co-ordination number four is: Show Answer

Q270) Sodium thiosulphate is a Show Answer

Q271) What are the products formed when an aqueous solution of magnesium bicarbonate is boiled? Show Answer

Q272) Alkaline earth metal salts are: Show Answer

Q273) Molten NaCl conducts electricity due to the presence of: Show Answer

Q274) The oxide of which metal is most stable to heat? Show Answer

Q275) A solution of sodium thiosulphate on addition of few drops of ferric chloride gives violet colour due to the formation of Show Answer

Q276) Alkali metals are characterised by: Show Answer

Q277) Which has lowest thermal stability? Show Answer

Q278) When NaCl is dissolved in water, the sodium ions become: Show Answer

Q279) In which of the following, sodium carbonate is not used? Show Answer

Q280) The difference of water molecules in gypsum and plaster of Paris is Show Answer

Q281) Alkaline earth metals are not found free in nature because of their: Show Answer

Q282) A radioactive element X decays giving two inert gases is: Show Answer

Q283) The principal products obtained on heating iodine with concentrated caustic soda solution are: Show Answer

Q284) The chloride ion is isoelectronic with potassium. The size of chloride ion is: Show Answer

Q285) Which of the alkali metal chloride is expected to have highest m.p.? Show Answer

Q286) On heating sodium metal in a current of dry ammonia gas the compound formed is: Show Answer

Q287) NaOCl is used as a bleaching agent and sterilising agent. It can be synthesised by the action of Show Answer

Q288) Most powerful reducing agent is Show Answer

Q289) The compound insoluble in acetic acid is: Show Answer

Q290) The ionic conductance is least for Show Answer

Q291) Sodium carbonate contains: Show Answer

Q292) A sudden large jump between the values of second and third ionization energies of an element would be associated with the electronic configuration: Show Answer

Q293) Which of the following reacts with water with high rate? Show Answer

Q294) Beryl is: Show Answer

Q295) Sodium chloride is known as: Show Answer

Q296) Soda lime is Show Answer

Q297) Lithopone is a mixture of: Show Answer

Q298) Which of the following is not known? Show Answer

Q299) Alkali metal chloride soluble in pyridine is: Show Answer

Q300) The characteristic colours given by calcium, strontium and barium in the flame test are respectively Show Answer

Q301) The first ionization energies of alkaline earth metals are higher than those of the alkali metals. This is because: Show Answer

Q302) NaOH is prepared by the method: Show Answer

Q303) Sodium thiosulphate is formed when: Show Answer

Q304) Commonly used laboratory desiccant is: Show Answer

Q305) An aqueous solution of KI does not give a precipitate with: Show Answer

Q306) Both Be and Al become passive on reaction with conc. Nitric acid due to: Show Answer

Q307) Sodium peroxide which is a yellow solid, when exposed to air becomes white due to the formation of Show Answer

Q308) The metal, that is extracted from sea water is: Show Answer

Q309) Sedimentary rocks laid down under water mainly contain: Show Answer

Q310) The salts of which alkaline earth metal are used in the form of manure? Show Answer

Q311) Potash alum is used in purification of water because: Show Answer

Q312) Which has maximum electropositive character? Show Answer

Q313) The main constituent of bones is: Show Answer

Q314) Which one of the following reactions occur at the anode, in the Castner process of extracting sodium metal? Show Answer

Q315) Mortar is a mixture of: Show Answer

Q316) Sodium cannot be extracted by the electrolysis of brine solution because: Show Answer

Q317) Calcium is obtained by Show Answer

Q318) The function of sand in mortar is: Show Answer

Q319) The most homogeneous family in periodic table is of: Show Answer

Q320) Which is most basic in character? Show Answer

Q321) On strong heating sodium bicarbonate changes into Show Answer

Q322) Mg keeps on burning in: Show Answer

Q323) Baking soda or baking powder is: Show Answer

Q324) Fusion mixture is comprised of: Show Answer

Q325) The most basic oxide among the following is: Show Answer

Q326) Which of the following will liberate hydrogen by its reaction with hydrochloric acid? Show Answer

Q327) Bleaching powder is obtained by treating chlorine with Show Answer

Q328) Baking powder contains Show Answer

Q329) Siedlitz powder contains: Show Answer

Q330) Sodium bicarbonate is manufactured by: Show Answer

Q331) In the hardening stage of plaster of Paris, the compound formed is Show Answer

Q332) Sodium reacts with water more vigorously than lithium because it: Show Answer

Q333) Magnesium has polarising power closer to that of: Show Answer

Q334) Calcium does not combine directly with: Show Answer

Q335) A fire of lithium, sodium and potassium can be extinguished by Show Answer

Q336) The alkali metals: Show Answer

Q337) Alkali metals are soft and have relatively low m.p. and low density. This is because: Show Answer

Q338) The starting material used in Solvay's process are Show Answer

Q339) The process associated with sodium carbonate manufacture is known as ….process. Show Answer

Q340) In Down's method for the extraction of sodium, the melting point of the electrolyte is lowered by adding Show Answer

Q341) Thomas slag is Show Answer

Q342) In the alkaline earth metals, the element forming predominantly covalent compound is Show Answer

Q343) The formula of Norwegian saltpetre is: Show Answer

Q344) Calcium is extracted by the electrolysis of: Show Answer

Q345) The right order of the solubility of sulphates of alkaline earth metals in water is Show Answer

Q346) Lithium is the only alkali metal which is not placed in kerosene but is wrapped in paraffin wax, because: Show Answer

Q347) Out of following which compound is used for preservation of wood? Show Answer

Q348) When sulphur is heated with NaOH (aq) the compounds formed are: Show Answer

Q349) In certain matters, lithium differs from other alkali metals, the main reason for this is: Show Answer

Q350) An ore of potassium is: Show Answer

Q351) Order of increasing density is Show Answer

Q352) The highly efficient method of obtaining beryllium is: Show Answer

Q353) In curing cement plasters water is sprinkled from time to time. This helps in Show Answer

Q354) Which decomposes on heating? Show Answer

Q355) The solubility of silver bromide in hypo solution due to the formation of Show Answer

Q356) Ionic hydrides: Show Answer

Q357) The chemical formula of plaster of Paris is Show Answer

Q358) Alloys of which metal are light and strong and are used in the manufacture of aeroplane parts? Show Answer

Q359) When magnesium is burnt in air, compounds of magnesium formed are magnesium oxide and: Show Answer

Q360) Which element of IA group is most abundantly found in combined state? Show Answer

Q361) Alkaline earth metal compounds are les soluble in water than corresponding alkali metal compounds because former have: Show Answer

Q362) The decreasing order of second ionization energy of K, Ca and Ba is: Show Answer

Q363) Fluorspar is: Show Answer

Q364) The most soluble compound in water is: Show Answer

Q365) Setting of plaster of Paris is Show Answer

Q366) Calcium is obtained by Show Answer

Q367) Which of the following metals has stable carbonates? Show Answer

Q368) The main reason for using a mercury electrolytic cell in NaOH manufacture is that: Show Answer

Q369) The ionic mobility of alkali metal ions in aqueous solution is maximum for Show Answer

Q370) Beryllium hydride is obtained by: Show Answer

Q371) The products of the electrolysis of concentrated aqueous solution of common salt are: Show Answer

Q372) In the Down’s cell KCl is added in NaCl to: Show Answer

Q373) Blanc fixe used in paints is: Show Answer

Q374) The weakest base among the following is: Show Answer

Q375) Calcium cyanide reacts with steam to form ammonia and: Show Answer

Q376) Which salt on heating does not give brown coloured gas is? Show Answer

Q377) The biggest ion is: Show Answer

Q378) The element which does not dissolve in caustic soda is: Show Answer

Q379) Which on heating with NaOH solution gives inflammable gas? Show Answer

Q380) The colour of iodine solution is discharged by shaking it with aqueous solution of: Show Answer

Q381) Hypo is chemically: Show Answer

Q382) Which alkaline earth metal is the most abundant in the earth's crust? Show Answer

Q383) The formula of the product formed, when sodium thiosulphate solution is added to silver bromide is Show Answer

Q384) Mg burns with a brilliant flame. This property is used in: Show Answer

Q385) Concrete is a mixture of: Show Answer

Q386) The reaction of water with sodium and potassium is: Show Answer

Q387) Which one is the highest melting point halide? Show Answer

Q388) Beryllium shows diagonal relationship with Show Answer

Q389) Bleaching action of bleaching powder is due to the liberation of Show Answer

Q390) Which one of the following order of stability is correct? Show Answer

Q391) Baryta water is: Show Answer

Q392) Barium burns in air to form Show Answer

Q393) The lightest metal among these is Show Answer

Q394) In India, at the occasion of marriages, the fireworks used give green flame. Which one of the following radicals may be present? Show Answer

Q395) A substance which gives a brick red flame and breaks down on heating giving oxygen and a brown gas is: Show Answer

Q396) Complex forming tendency is more for Show Answer

Q397) Alkali metals act as Show Answer

Q398) The mineral of magnesium is Show Answer

Q399) Mortar is a mixture of Show Answer

Q400) In between the metals A and B, both form oxide but B also forms nitride, when both burn in air. So A and B are: Show Answer

Q401) Which of the following alkaline earth metal sulphate has hydration enthalpy by higher than its lattice enthalpy? Show Answer

Q402) NaOH is not used in: Show Answer

Q403) Cement does not contain Show Answer

Q404) A solution of KOH in water is called: Show Answer

Q405) Which of the following hydrogen compounds is most ionic? Show Answer

Q406) Which sequence of reactions shows correct chemical relation between sodium and its compounds? Show Answer

Q407) The salt added to table salt to make it flow freely in rainy season is: Show Answer

Q408) Lithopone is Show Answer

Q409) Sodium bicarbonate solution on adding to magnesium sulphate solution forms: Show Answer

Q410) Which pair of elements would form the most ionic bond? Show Answer

Q411) Sodium carbonate is manufactured by Solvay process. The products those are recycled are: Show Answer

Q412) Based on lattice energy and other considerations which one of the following alkali metal chlorides is expected to have the highest melting point? Show Answer

Q413) Sodium carbonate on heating gives: Show Answer

Q414) The correct order of hydration energy of alkaline earth metal ions is: Show Answer

Q415) Which one has highest lattice energy? Show Answer

Q416) The decomposition temperature is maximum for Show Answer

Q417) Which of the following exists in polymeric form? Show Answer

Q418) The element which on burning in air gives peroxide is Show Answer

Q419) Electric cookers have a coating of ….that protects them against fire. Show Answer

Q420) Limestone is not used in which of the following manufacturing processes? Show Answer

Q421) Microcosmic salt is Show Answer

Q422) Sodium burns in dry air to give: Show Answer

Q423) The byproduct of Solvay process is: Show Answer

Q424) Select the incorrect statement Show Answer

Q425) Acidified solution of sodium thiosulphate is unstable because in thiosulphate: Show Answer

Q426) Metals belonging to the same group in the periodic table are: Show Answer

Q427) Which of the following compounds is a peroxide: Show Answer

Q428) In the extraction of sodium by Down's process, cathode and anode are respectively Show Answer

Q429) Milk of lime is: Show Answer

Q430) Celestine is an ore of: Show Answer

Q431) Which of the following statements is false regarding saline hydrides? Show Answer

Q432) Among the alkali metals caesium is the most reactive because Show Answer

Q433) Phosphine, acetylene and ammonia can be formed by treating water with Show Answer

Q434) Soda ash is chemically: Show Answer

Q435) Magnesia is: Show Answer

Q436) Which one of the following processes is used for manufacture of calcium? Show Answer

Q437) Which of the following ions, will have maximum hydration energy? Show Answer

Q438) Which substance gives a different flame colouration from the others? Show Answer

Q439) An alloy of Na + K is: Show Answer

Q440) Chlorophyll contains: Show Answer

Q441) Carnallite is Show Answer

Q442) Oxygen can be obtained by heating: Show Answer

Q443) Sodium carbonate solution in water is alkaline due to: Show Answer

Q444) Which of the following pairs of substances would give same gaseous product in reaction with water? Show Answer

Q445) Which of the following reaction does not liberate gaseous product? Show Answer

Q446) Which of the following is not correct? Show Answer

Q447) Which of the following compounds has the lowest melting point? Show Answer

Q448) The outermost electron is most loosely held in: Show Answer

Q449) On heating quick lime with coke in an electric furnace we get: Show Answer

Q450) Which of the following is not an ore of magnesium? Show Answer

Q451) Which salt will not impart colour to flame? Show Answer

Q452) Gypsum is added to clinker during cement manufacture to: Show Answer

Q453) The chloride that can be extracted with ether: Show Answer

Q454) Which is most basic in character? Show Answer

Q455) Iceland spar is: Show Answer

Q456) Which of the following acts as reducing agent as well as oxidising agent? Show Answer

Q457) Which of the following is correct? Show Answer

Q458) Which will react with acid and alkalies both i.e., (amphoteric)? Show Answer

Q459) Which is quick lime? Show Answer

Q460) Pearl ash and caustic potash are chemically: Show Answer

Q461) When sodium is heated in flame it gives: Show Answer

Q462) Among the following, which has minimum solubility in water? Show Answer

Q463) Sodium chloride imparts a golden yellow colour to the Bunsen flame. This can be interpreted due to: Show Answer

Q464) Which property increases in magnitude as the atomic number of alkali metals increases? Show Answer

Q465) Bleaching powder is obtained by the interaction of chlorine and Show Answer

Q466) Ca, Sr and Ba dissolve in liquid ammonia giving a…… Show Answer

Q467) Potassium when heated strongly in oxygen, it forms: Show Answer

Q468) The ionic conductances of following cations in a given concentration are in the order Show Answer

Q469) Which can undergo both oxidation and reduction? Show Answer

Q470) Which component of cement sets at the slowest rate? Show Answer

Q471) Scarlet flame colour of Bunsen flame is characteristic of: Show Answer

Q472) Which pair of the following chlorides do not impart colour to the flame? Show Answer

Q473) Which one of the following electrolytes is used in Down's process of extracting sodium metal? Show Answer

Q474) In the presence of cobalt chloride, bleaching powder decomposes to form Show Answer

Q475) The highest oxidation potential stands for: Show Answer

Q476) Melting point is highest for: Show Answer

Q477) Sodium has…..as compared to potassium Show Answer

Q478) Which ion forms hydroxide easily soluble in water? Show Answer

Q479) One of the important use of quicklime is: Show Answer

Q480) Which out of the following statements is not correct for anhydrous calcium chloride? Show Answer

Q481) On heating washing soda, we get: Show Answer

Q482) Sodium peroxide in contact with moist air turns white due to the formation of: Show Answer

Q483) Which of the following is incorrect? Show Answer

Q484) When sodium chloride solution is electrolysed, the gas that is liberated at the cathode is Show Answer

Q485) Which alkaline earth metal nitride is volatile? Show Answer

Q486) Manufacture of NaOH is done by: Show Answer

Q487) Which one of the following statements is true for all the alkali metals? Show Answer

Q488) Strongest reducing agent among the following is: Show Answer

Q489) The compound which is not soluble in dil. HCl is: Show Answer

Q490) Which alkali metal is most metallic in character? Show Answer

Q491) Sodium is manufactured by the electrolysis of a fused mixture of sodium and calcium chlorides in a steel cell using a graphite anode and an iron cathode. Calcium is not liberated since: Show Answer

Q492) One mole of magnesium nitride on the reaction with excess water gives: Show Answer

Q493) Which of the following is known as dead burnt plaster? Show Answer

Q494) Which of the compounds of cement sets at the slowest rate? Show Answer

Q495) Which removes temporary hardness of water and is used in the manufacture of bleaching powder? Show Answer

Q496) The alkali metal that reacts with nitrogen directly to form nitride is Show Answer

Q497) Elements of group 1 and group VI in the periodic table have one thing common. That is with the increasing atomic number, the: Show Answer

Q498) The most reactive element among the following is: Show Answer

Q499) The non-metal which is not affected by NaOH: Show Answer

Q500) Beryllium shows diagonal relationship with aluminium. Which of the following similarity is incorrect? Show Answer

Q501) Which statement is correct for alkaline earth metals? Show Answer

Q502) Which alkali metal bicarbonates does not exist as solid? Show Answer

Q503) In a sodium chloride crystal, each chloride ion is surrounded by: Show Answer

Q504) Alkaline earth metals are denser than alkali metals, because metallic bonding in alkaline earth’s metal is Show Answer

Q505) The ion having maximum value of hydration energy is: Show Answer

Q506) Magnesium metal is prepared by: Show Answer

Q507) Which of the following hydroxides is amphoteric in nature? Show Answer

Q508) Black ash is: Show Answer

Q509) Sodium carbonate is: Show Answer

Q510) How many elements are included in IA group? Show Answer

Q511) Which category of salts of alkaline earth metals is not found in solid state, but found in solution state? Show Answer

Q512) Which is not true in respect of berryllium chemistry? Show Answer

Q513) The cation which forms a yellow precipitate with potassium chromate in acetic acid is: Show Answer

Q514) For which one of the following minerals, the composition given is incorrect? Show Answer

Q515) The stability of the following alkali metal chlorides follows the order: Show Answer

Q516) The solubility of alkali metal hydroxide is Show Answer

Q517) Which of the statements is not true? Show Answer

Q518) The alkali metal which acts as a nutrient for plants is: Show Answer

Q519) Glauber's salt is: Show Answer

Q520) Which chloride is covalent and soluble in ether? Show Answer

Q521) Which compound is used in photography? Show Answer

Q522) Which metal does not form ionic hydride? Show Answer

Q523) The dark red colour of bombs in fireworks is due to the presence of Show Answer

Q524) Which of the following metal carbonates is decomposed on heating? Show Answer

Q525) Which of the following is not soluble in NaOH? Show Answer

Q526) Some large white transparent crystals are left out in a bowl for several days. They are then observed to have changed their form into white powder. The crystals may have been of Show Answer

Q527) Excess of dilute sodium hydroxide solution is gradually added with shaking to an aqueous solution of zinc sulphate. What would you observe? Show Answer

Q528) The raw materials in Solvay process are: Show Answer

Q529) One mole of magnesium nitride on the reaction with an excess of water gives Show Answer

Q530) Slaked lime is: Show Answer

Q531) Sodium thiosulphate is prepared by Show Answer

Q532) Setting of plaster of Paris involves Show Answer

Q533) The only element which is radioactive among alkali metals is: Show Answer

Q534) The pair of compounds which cannot exist together in solution is: Show Answer

Q535) Potassium is kept in Show Answer

Q536) Common table salt becomes moist and does not pour easily in rainy season because: Show Answer

Q537) The calcium salt used as manure is: Show Answer

Q538) Lithium iodide is: Show Answer

Q539) Which of the following represents the composition of carnallite mineral? Show Answer

Q540) Sodium metal cannot be stored under: Show Answer

Q541) The element that forms a solid basic oxide at room temperature is: Show Answer

Q542) Which ion has closed shell electronic configuration? Show Answer

Q543) Which alkali metal is frequently used in solar cells? Show Answer

Q544) Which gives apple green colour in fireworks? Show Answer

Q545) Which of the following process is used in the extractive metallurgy of magnesium? Show Answer

Q546) The substance used in Holme’s signal of the ship is a mixture of Show Answer

Q547) Causticisation process is used for the preparation of: Show Answer

Q548) Which of the following alkali metal ion in aqueous solution is the best conductor of electricity? Show Answer

Q549) Indian saltpetre is: Show Answer

Q550) Brine is chemically: Show Answer

Q551) The atomic numbers of four elements are given below. Which is an alkaline earth metal? Show Answer

Q552) The plaster of Paris is: Show Answer

Q553) The ashes of plants contain alkali metals, 90% of which is: Show Answer

Q554) Superphosphate of lime is a mixture of: Show Answer

Q555) A solid is a compound of group 1 element and it gives a bright red colour in the flame test. The solid is Show Answer

Q556) When sodium metal is dissolved in liquid ammonia, a blue solution is formed. The blue colour is due to: Show Answer

Q557) The chemical which is used for plastering the broken bones is Show Answer

Q558) Which one is not a correct formula? Show Answer

Q559) Plaster of Paris on making paste with little water sets to hard mass due to formation of Show Answer

Q560) Which one of the following is the highest melting halide? Show Answer

Q561) The chemical formula of feldspar is Show Answer

Q562) Which of the following properties of lithium does not show diagonal relationship with magnesium? Show Answer

Q563) Lithium is strongest reducing agent among alkali metals due to which of the following factor? Show Answer

Q564) Li, Na among alkali metals show properties of: Show Answer

Q565) Caesium oxide will be: Show Answer

Q566) When ammoniacal solution of common salt is saturated with carbon dioxide, we get: Show Answer

Q567) Microcosmic salt has the formula: Show Answer

Q568) The alkali metals form salt-like hydrides by the direct synthesis at elevated temperature. The thermal stability of these hydrides decreases in which of the following orders? Show Answer

Q569) Which of the following has minimum values of cation-anion size ratio? Show Answer

Q570) Which alkaline earth metal forms complex salts? Show Answer

Q571) Which electronic configuration represents the configuration of the most electropositive element? Show Answer

Q572) Le-blanc process is employed in the manufacture of Show Answer

Q573) When a crystal of caustic soda is exposed to air, a liquid layer is deposited because: Show Answer

Q574) The most soluble halide in water is Show Answer

Q575) Which does not form double salt? Show Answer

Q576) Which of the following on thermal decomposition yields a basic as well as an acidic oxide? Show Answer

Q577) Sorel’s cement is Show Answer

Q578) When KI is added to acidified solution of sodium nitrite then Show Answer

Q579) The metallic lustre exhibited by sodium is due to: Show Answer

Q580) Baryta is: Show Answer

Q581) Which pair cannot exist together in solution? Show Answer

Q582) NaOH is prepared by the electrolysis of: Show Answer

Q583) Oxygen is obtained from bleaching powder by: Show Answer

Q584) Washing soda is: Show Answer

Q585) Element found in plant systems which forms an important constituent of photosynthesis is: Show Answer

Q586) Chlorine reacts with 'X' to form bleaching powder. 'X' is Show Answer

Q587) Hesenclever's process is a method for the manufacture of: Show Answer

Q588) The most dangerous method of preparing hydrogen would be by the action of HCl on: Show Answer

Q589) Which ion forms a hydroxide highly soluble in water? Show Answer

Q590) Beryllium and aluminium exhibit many properties which are similar. But, the two elements differ in Show Answer

Q591) The metal X is prepared by the electrolysis of fused chloride. It reacts with hydrogen to form a colourless solid from which hydrogen is released on treatment with water. The metal is: Show Answer

Q592) The molecular formula of potash alum is Show Answer

Q593) Dolomite is a carbonate ore of: Show Answer

Q594) Which is known as crystal carbonate? Show Answer

Q595) Which is used in preparation of portland cement? Show Answer

Q596) The most electropositive element in alkali metals, is Show Answer

Q597) Caustic soda is: Show Answer

Q598) Photoelectric effect is maximum in Show Answer

Q599) The solubilities of carbonates of magnesium group decreases down due to decrease in: Show Answer

Q600) Highly pure dilute solution of sodium in liquid ammonia: Show Answer

Q601) Tincal is: Show Answer

Q602) Which one of the following is true? Show Answer

Q603) The yellow light for illumination of lamps is from: Show Answer

Q604) Calcium cyanamide reacts with steam to form ammonia and……. Show Answer

Q605) Thermal decomposition of which compound yields a basic and acidic oxide simultaneously? Show Answer

Q606) Which one of the following will dissolve in water most readily? Show Answer

Q607) Which group of elements lose electrons more readily? Show Answer

Q608) The nitride ion in lithium nitride is composed of: Show Answer

Q609) firework gave bright crimson light. It is probably a salt of: Show Answer

Q610) One of the elements present in carnallite shows flame colouration. The colour of the flame is Show Answer

Q611) Which of the following dissolves in hot conc. NaOH solution? Show Answer

Q612) The electrolyte employed in the extraction of sodium by Down's electrolysis method is: Show Answer

Q613) Which of the following represents calcium chlorite? Show Answer

Q614) Which compound gives acetylene on reaction with water? Show Answer

Q615) Which represents nitrolime? Show Answer

Q616) What are the metal ions present in carnallite? Show Answer

Q617) Sodium reacts with water less vigorously than potassium because: Show Answer

Q618) In which of the following reactions, MgO is not formed? Show Answer

Q619) It is used as reducing agent in organic reactions. Show Answer

Q620) Which of the following metal carbonates decomposes on heating? Show Answer

Q621) Magnesium has polarizing power closer to that of: Show Answer

Q622) The ionic carbide is: Show Answer

Q623) The correct order of solubility of the sulphates of alkaline earth metals in water is Show Answer

Q624) Compared with the alkaline earth metals, the alkali metals exhibit Show Answer

Q625) The activity of alkaline earth metals as reducing agents Show Answer

Q626) The main constituent of egg-shells is Show Answer

Q627) Which of the following is weakest base? Show Answer

Q628) Which alkali metal emits largest wavelength in the flame test? Show Answer

Q629) The solubilities of carbonates decrease down the magnesium group due to decrease in Show Answer

Q630) The bleaching action of bleaching powder is due to the formation of Show Answer

Q631) Which of the following sulphates has the highest solubility? Show Answer

Q632) A chloride dissolves appreciably in cold water. When placed on a platinum wire in Bunsen flame, no distinctive colour is noticed. Which one is cation? Show Answer

Q633) Barium is extracted from its ore: Show Answer

Q634) Oxone is name given to: Show Answer

Q635) Which alkaline earth metal shows some anomalous behaviour and has the same electro negativity as aluminium? Show Answer

Q636) The chemistry of lithium is very much similar to that of magnesium even though they are placed in different groups. The reason is: Show Answer

Q637) Solvay process is used for the manufacture of Show Answer

Q638) Which hydride is most stable? Show Answer

Q639) Zinc carbonate can be obtained from a solution of zinc chloride by adding: Show Answer

Q640) Ra is placed at the bottom of alkaline earth metals. The element should: Show Answer

Q641) Who discovered radium? Show Answer

Q642) Which gives least basic oxide? Show Answer

Q643) The decomposition temperature is maximum for Show Answer

Q644) Gun powder is: Show Answer

Q645) Calcium phosphide is: Show Answer

Q646) Which alkali metal reacts with nitrogen to form nitride? Show Answer