Practice Test


1) Transition metals exhibit each of the following properties except


2) The principal oxidation state of lanthanides is


3) The f - block elements are also called


4) The lanthanide contraction refers to


5) Which of the following elements does not belong to first transition series?


6) The element which exhibits variable valency is


7) Which of the following is not correct?


8) Which of the following groups of elements forms mostly coloured compounds?


9) Which of the following does not belong to first transition series?


10) Copper has each of the following properties except :


11) Which of the following has lowest density?


12) The separation of lanthanides in ion exchange method is based on:


13) Which of the following statements is not correct regarding lanthanides and actinides?


14) The copper group (IB) consists of the following elements except


15) In which state, the compounds of vanadium are diamagnetic?


16) Which of the following elements forms two or more chlorides?


17) The iron triad of elements are


18) The mass of gold in an 18 carat gold ring of 4 g is


19) Which metal has the highest melting point?


20) Which of the following belongs to actinide series of elements?


21) Which of the following statements concerning transition metal is false?


22) Zn and Hf have almost equal atomic and ionic radii because of


23) Permanent magnets are generally made of alloys of


24) The maximum oxidation state shown by osmium is


25) The mineral from which potassium permanganate is manufactured is


26) Which one of the following metals has the lowest melting point?


27) The colour of lanthanides and actinides is due to


28) Which of the following does not belong to same group?


29) Which of the following is paramagnetic?


30) Which of the following forms interstitial compounds?


31) Which of the following has maximum ferromagnetic character?


32) The element which is present in every amalgam is


33) The colour of transition metal compounds is attributed to


34) When potassium dichromate crystals are heated with concentrated sulphuric acid, we get


35) Which of the following elements has highest melting point?


36) Highest (+7) oxidation state is shown by


37) The most stable oxidation state of iron is


38) Acidified potassium dichromate is treated with hydrogen sulphide. In this reaction, the oxidation number of chromium


39) Common oxidation state of scandium, a transition element is / are (At. No. = 21)


40) Useful lanthanides member is


41) Addition of high proportions of manganese makes steel useful in making rails of railroads because manganese


42) The colour of Cu (I) salts is


43) The calculated spin magnetic moment of Fe (II) is


44) Which of the following is known as ' Wonder metal ' ?


45) Which of the following form interstitial compounds of transition metals?


46) Which of the following is correct sequence of first transition series?


47) Brass is an alloy of


48) The purest form of iron is


49) Which of the following is not an ore of copper?


50) Which element is alloyed with copper to form bronze?


51) Percentage of gold in 21.6 carat of gold is


52) If a steel article is heated to red hot and then it is allowed to cool slowly, the process is called


53) Two of the constituents of German silver are


54) The compound which gives off oxygen on moderate heating is


55) An alloy which does not contain copper is


56) Copper is used in each of the following except


57) Which of the following is most soluble in water?


58) The most important alloying element in the manufacture of steel is


59) Which of the following does not form oxide with air?


60) Which of the following sulphides is not black?


61) Which of the following is not an important use of tin?


62) Which of the following is used as a catalyst in Deacons process for the manufacture of chlorine?


63) Constantan is an alloy of copper and


64) The salts of which element are commonly used in photography?


65) Lead is most readily dissolved in


66) Extraction of silver from commercial lead is possible by :


67) Which of the following is not an alloy of tin?


68) When silver nitrate is heated, it gives


69) A ring weighing 4 g contains 3 g of gold. It can be marked as


70) Which of the following gives oxygen on moderate heating?


71) Gold dissolves in


72) Copper has the following properties except


73) Coke is used in metallurgical process mainly as


74) Which element is alloyed with copper to form brass?


75) Iron is protected by coating it with a thin layer of


76) Blister copper is


77) Percentage of silver is german silver is about


78) Silver nitrate is kept in brown bottles in the laboratory because


79) Lead pipes are not safe for drinking water because


80) Which of the following is not an alloy of tin?


81) Silver nitrate produces a black stain on skin due to


82) Which of the following metals is not dissolved in mercury?


83) Passivity of iron is due to the formation of thin film of


84) The process used for the extraction of gold is


85) Which of the following sulphides is soluble in dil HCl?


86) Which of the following alloys contains Cu and Zn?


87) German silver does not contain


88) Which of the following melts in boiling water?


89) The metal present in insulin is


90) Tinning of utensils is done to


91) Which halide of silver is least soluble in ammonia?


92) Which of the following element is present in haemoglobin?


93) Rose metal contains


94) The main constituent (highest percentage) of monel metal is


95) Siderite is


96) Photographic films and plates have an essential constituent of


97) Which metal is present in brass, bronze and German silver?


98) Gun metal is an alloy of


99) Percentage of silver in the alloy German silver is


100) The trace metal present in insulin is


101) Galvanization is the


102) Which of the following sulphide is black in colour?


103) Which is common metal in gun metal, pewter and bell metal?


104) The chemical process in the production of steel from haematite ore involves


105) Anhydrous ferric chloride is prepared by


106) Which one of the following nitrates will leave behind a metal on strong heating?


107) A reduction in atomic size with increase in atomic number is a characteristic of elements of


108) Cerium (Z = 58) is an important member of the lanthanoids. Which of the following statement about cerium is incorrect?


109) Which one contains both iron and copper?


110) The main reason for larger number of oxidation states exhibited by actinoids than the corresponding lanthanoids is


111) During the process of electrolytic refining of copper some metals present as impurity settle as "anode mud". These are:


112) The oxidation state of final product formed by the reaction between KI and acidified potassium dichromate solution is


113) The lanthanide contraction is responsible for the fact that


114) Lanthanoid contraction is caused due to


115) Transition metals usually exhibit highest oxidation states in their


116) Which metal sulphide is not black?


117) Which of the following is the major impurity in pig iron?


118) Zinc and mercury do not show variable valency like d - block elements because


119) Elements which generally exhibit multiple oxidation states and whose ions are usually coloured are


120) Silica is added to roasted copper ore during smelting in order to remove


121) The protection of steel by chrome plating is due to


122) The alloy best suited for making meter scales is


123) Across the lanthanide series, the basicity of the lanthanide hydroxides


124) In potassium manganate, the oxidation state of manganese is


125) Which of the following iron salts exists as dimer?


126) Which ion gives coloured solution?


127) Iron (III)


128) Which of the following compounds is paramagnetic?


129) Which of the following is colourless?


130) Scandium resembles with aluminium in the following properties except


131) Vanadyl ion is


132) The yellow coloured solution of chromate salt changes to orange colour on acidification due to the formation of


133) Which of the following has lowest magnetic moment?


134) Manganese shows oxidation states from +2 to +7. The most strongly oxidising state known in aqueous solution is


135) When thiocyanate ions are added to the ferric solution, a deep red colour is obtained. It is due to the presence of:


136) Which of the following complex ions does not correspond to Fe (II)?


137) Which of the following is an acidic oxide?


138) Magnetite is


139) The brown ring test for nitrites and nitrates is due to the formation of complex of iron with the formula:


140) Which of the following ions is paramagnetic?


141) Which oxide of vanadium is most likely to be basic and ionic?


142) Chromium becomes passive by the action of each of the following except:


143) Which of the following forms a stable +4 oxidation state?


144) Chromite is:


145) Which of the following is paramagnetic?


146) Potassium permanganate on heating gives:


147) Which of the following has smallest ionic radius?


148) Iron is rendered passive by treatment with concentrated:


149) The aqueous solution of following salts will be coloured in case of :


150) Which of the following oxides of chromium is amphoteric in nature?


151) Manganese exhibits maximum oxidation state in


152) Which of the following metal oxides is white in colour but becomes yellow on heating?


153) The maximum magnetic moment is shown by the ion with the outer electronic configuration of


154) Which of the following has lowest magnetic moment?


155) In strong alkaline medium, potassium permanganate changes to :


156) The electrolysis of potassium manganate gives:


157) When dilute sulphuric acid and hydrogen peroxide are added to a solution of chromate ions, an intense blue colour is produced which is stable in ether. This is due to the formation of:


158) Amongst the following the lowest degree of paramagnetism per mole of the compound at 298 K will be shown by


159) Which of the following does not belong to 3d series?


160) Iron has the lowest oxidation state in


161) Which of the following has magnetic moment of 1.73 BM (approx)?


162) In the case of transition metal ions, the magnetic moment for n unpaired electrons is given by


163) The magnetic moment of a transition metal ion is found to be 3.87 B.M. It is probably:


164) In acidic medium if potassium permanganate is used as an oxidising agent, we get:


165) Among the following outermost configurations of transition metals, which shows the highest oxidation state?


166) Which of the following has least magnetic moment?


167) Which of the following compounds is expected to be coloured?


168) Among the following the compound that is both paramagnetic and coloured is


169) The last electron in d - block elements goes to


170) Rusting of iron is catalysed by


171) Which of the following statement (s) is (are) correct with reference to ferrous and ferric ions


172) The composition of the deliquescent crystals of zinc chloride is


173) Which of the following has tendency to act as an oxidising agent?


174) Permanganic acid is


175) Which of the following statement is incorrect?


176) In case of actinides, the degree of complex formation decreases as:


177) Which of the following pairs has almost same colour?


178) Which of the following is good oxidising agent?


179) In which of the following pairs, the first ion has larger magnetic moment than the other?


180) Which of the following statements is false?


181) Which of the following contain two unpaired electrons?


182) Blue vitriol is


183) Horn silver has the chemical formula


184) Zincite is


185) Calomel is:


186) Passivity of iron is due to the formation of a thin layer of:


187) Nessler's reagent is :


188) Lead acetate paper turns black on exposure to


189) Magnetite is


190) The aqueous solution of the following salts will be coloured in case of


191) The formula of Lunar caustic is


192) The black oxide of copper (CuO) in attacked by moisture and carbon dioxide in air and forms a green film of


193) Which of the following is dark brown solid?


194) Litharge is


195) Chrome red is


196) Nessler's reagent is an alkaline solution of


197) Which of the following is not white?


198) Which of the following is known as philosopher's wool?


199) Lead (IV) oxide dissolves in sodium hydroxide to give:


200) Bordeaux mixture is lime and solution of


201) Lithopone is a mixture of


202) Mohr's salt is


203) On adding excess of sodium hydroxide to zinc gives:


204) Sugar of lead has the chemical formula of


205) Which of the following represents white lead?


206) Treatment of ammoniacal silver nitrate with glucose gives


207) Silver nitrate


208) Basic copper carbonate on heating gives.


209) Iron is rendered passive by treatment with concentrated:


210) Thomas slag is


211) Mercurous chloride reacts with stannous chloride to give black precipitate of


212) Which of the following is used in cosmetics under the name vermillon?


213) Which of the following is known as ruby copper?


214) Which of the following is used as purgative in medicines?


215) Which is the malachite ore of copper?


216) Which of the following is fool's gold?


217) Softening of lead means:


218) Ferric sulphate on heating gives:


219) Tin dissolves in hot alkali solution due to the formation of:


220) Which of the following lead compounds is most stable?


221) Gold dissolves in:


222) The composition of golden spangles is :


223) Which of the following ions exists as dimer?


224) Which of the following nitrates on strong heating leaves the metal as the residue?


225) Which of the following undergoes sublimation?


226) An extremely hot copper wire reacts with steam to give:


227) Substance soluble in ammonia is


228) Which of the following is known as worm silver?


229) Which of the following is known as ruby copper?


230) The composition of golden spangles is


231) The composition of golden spangles is


232) The formula of corrosive sublimate is


233) Optical glass has a high percentage of


234) Passivity of iron is due to the formation of :


235) The formula of haematite is:


236) In Nessler's reagent, the ion is:


237) Horn silver dissolves in excess of sodium cyanide forming?


238) Lithopone is:


239) Copper sulphate solution reacts with KCN to give:


240) Iron is rendered passive when treated with:


241) An important ore of copper is


242) Titanium shows magnetic moment of 1.73 B.M. in its compound. What is the oxidation number of Ti in the compound?


243) Copper is extracted from copper pyrites ore by heating in a blast furnace. The method is based on the principle that


244) Super conductors are derived from compounds of


245) On heating ammonium dichromate, the gas evolved is


246) The basic character of transition metal monoxides follow the order


247) Lanthanide for which + II and + III oxidation states are common


248) Vanadium (II) oxide is a strong


249) Lanthanoids are


250) Lanthanides and actinides resemble in


251) In transition series, as the atomic number increases, paramagnetism


252) Four sucessive members of the first row transition elements are listed below with their atomic numbers. Which one of them is expected to have highest third ionisation enthalpy?


253) Misch mental is


254) Transition metals show paramagnetism


255) Which of the following does not give a precipitate with excess of NaOH?


256) Formula of green vitriol in


257) Lead sesquioxide is


258) Which of the following statement is not correct


259) An aqueous solution of a substanc gives, a white precipitate on treatment with dilute hydrochloric acid, which dissolves on heating, when hydrogen sulfide is passed through the hot acidic solution, a black precipitate is obtained. The substance is a :


260) Which of the following statement is wrong?


261) The final product on the reduction of mercury (II) chloride is


262) Ammonium dichromate is used in fireworks. The green coloured powder blown in air is


263) The chemical composition of slag formed during the smelting process in the extraction of copper is


264) The colourless species is


265) Which of the following compounds is expected to show similar colour in aqueous medium?


266) Which is colourless in water?


267) Which of the following substances has least ionic character?


268) The final step in the metallurgical extraction of Cu metal from Copper pyrites takes place in a Bessemer converter. The reaction taking place is


269) In the extraction of iron, slag is produced which is


270) Which of the following statement is not correct?


271) General electronic configuration of lanthanides is


272) Parke's process is used


273) The colourless species is


274) The aqueous solution containing which one of the following ions will be colourless?


275) Which of the following is highly corrosive salt?


276) Among the following pairs of ions, the lower oxidation state in aqueous solution is more stable than the other in


277) The fixing process of photographic film involves removal of unchanged silver bromide as


278) Copper sulphate dissolves in excess of KCN to give


279) In which of the following pairs are both the ions coloured in aqueous solution?
(At. no: Sc = 21, Ti = 22, Ni = 28, Cu = 29, Co = 27)


280) The correct order of decreasing second ionisation enthalpy of Ti (22), V (23), Cr (24) and Mn (25) is:


281) Which one of the elements with the following outer orbital configurations may exhibit the largest number of oxidation states?


282) Which of the following complex ions is expected to absorb visible light?
(At. no. Zn = 30, Sc = 21, Ti = 22, C r = 24)


283) Which one of the following ions will give a coloured solution?


284) Which one of the following ions has the maximum magnetic moment?


285) Which of the following ions will exhibit colour in aqueous solutions?


286) Which of the following pairs has the same size?


287) In the first transition series, the element with highest melting point is


288) Zr and Hf have almost equal atomic radii and ionic radii because of


289) The maximum oxidation state of Os is


290) Ammonium dichromate is used in fire works. The green coloured powder blown in air is


291) Which of the following metals is used in incandescent lamps?


292) Which of the following is paramagnetic?


293) Percentage of gold in 18 carat gold is :


294) Copper sulphate solution reacts with KCN to form


295) The outer shell electronic configuration of Gd (Z = 64) is


296) The stable oxidation state of Ce (Z = 58) is


297) Chromyl chloride is


298) Which of the following has maximum number of unpaired electrons?


299) The orange colour of dichromate solution changes to yellow on heating with alkalies due to the formation of


300) In which of the following set, all the ions are white?


301) Which of the following statements is false?


302) Which of the following is most acidic?


303) Which of the following is ionic?


304) Which of the following oxoanion is not possible?


305) Which of the following is least basic?


306) Which of the following is explosively unstable?