Practice Test


Q1) Neutralization of an acid with a base, invariably results in the production of Show Answer


Q2) Ostwald's dilution law is applicable to Show Answer


Q3) Which one is not an acid salt? Show Answer


Q4) Of the given anions, the strongest Bronsted base is Show Answer


Q5) Which of the following is only acidic in nature ? Show Answer


Q6) Which one of the following is an acid salt ? Show Answer


Q7) According to Lewis concept acid is Show Answer


Q8) Which one of the following is the strongest acid ? Show Answer


Q9) Among the following, the weakest base is Show Answer


Q10) Bases do not have property of Show Answer


Q11) According to Lewis concept a base is Show Answer


Q12) Which one of the following oxides is amphoteric ? Show Answer


Q13) Water is Show Answer


Q14) Which of the following is not a Lewis acid ? Show Answer


Q15) Ammonium ion is Show Answer


Q16) Which one of the following can be classified as a Bronsted base? Show Answer


Q17) Which of the following will give maximum ions in solution ? Show Answer


Q18) Which one of the following substances has highest proton affinity ? Show Answer


Q19) The strongest conjugate base is Show Answer


Q20) Sulphanilic acid is a / an Show Answer


Q21) Species acting both as Bronsted acid and base is Show Answer


Q22) At infinite dilution, the percentage ionisation for both strong and weak electrolytes is Show Answer


Q23) The strongest base of the following species is Show Answer


Q24) Which is a Lewis base ? Show Answer


Q25) Which of the following would be an acidic solution? Show Answer


Q26) pH of a solution is defined by the expression Show Answer


Q27) The term pH comes from Show Answer


Q28) 40 mg of pure sodium hydroxide is dissolved in 10 litre of distilled water. The pH of the solution is Show Answer


Q29) Out of the following, the compound whose water solution has the highest pH is Show Answer


Q30) A pH of 7 signifies Show Answer


Q31) When the pH of a solution is 2, the hydrogen ion concentration in moles per litre is Show Answer


Q32) 50 ml of 0.1 M HCl and 50 ml of 0.2 M NaOH are mixed. The pH of resulting solution is Show Answer


Q33) Assuming complete dissociation, the pH of a 0.01 M NaOH solution is equal to Show Answer


Q34) For a solution at 298 K, the sum of pH and pOH will be equal to Show Answer


Q35) The gastric juice in our stomach contains enough HCl to make the hydrogen ion concentration about 0.01 mole / litre. The pH of gastric juice is Show Answer


Q36) Which one of the following has highest pH? Show Answer


Q37) A soda water bottle has pH Show Answer


Q38) The pH of decinormal solution of KOH is Show Answer


Q39) The pH of solution formed by mixing 40 ml of 0.10 m HCl with 10 ml of 0.45 M of NaOH is Show Answer


Q40) 20 ml of 0.1 N HCl is mixed with 20 ml of 0.1 N KOH, the pH of the solution would be Show Answer


Q41) An acid solution of pH = 6 is diluted hundred times. The pH of solution becomes approximately. Show Answer


Q42) An aqueous solution whose pH =1.2 is Show Answer


Q43) A solution of NaCl in contact with atmosphere has a pH of about Show Answer


Q44) A certain sample of beer has a pH of 10. The concentration of hydrogen ion in the beer is Show Answer


Q45) The hydroxyl ion concentration in a solution having pH value 3 will be Show Answer


Q46) The pH of solutions A, B, C and D are respectively 9.5, 2.5, 3.5 and 5.5. The most acidic solution is Show Answer


Q47) pH of water is Show Answer


Q48) The pH of a solution of hydrochloric acid is 4. The molarity of this solution is Show Answer


Q49) Highest pH = 14 is shown by Show Answer


Q50) pH of a solution produced when an aqueous solution of pH = 6 is mixed with an equal volume of an aqueous solution of pH = 3 is about Show Answer


Q51) The pH of a solution is 5. Its hydrogen ion concentration is decreased 100 times, the solution will then be Show Answer


Q52) The pH of blood is Show Answer


Q53) Which one of the following statements is not true ? Show Answer


Q54) If 0.1 M of a weak monobasic acid is taken and its percentage degree of ionisation is 1.34 %, then calculate its ionisation constant. Show Answer


Q55) Which of the following salts when dissolved in water hydrolyses ? Show Answer


Q56) Which of the following salt undergoes hydrolysis ? Show Answer


Q57) Aqueous solution of sodium acetic is Show Answer


Q58) 0.1 M solution of which of the substances will behave as basic ? Show Answer


Q59) An aqueous solution of ammonium acetate is Show Answer


Q60) An aqueous solution of aluminium sulphate would show Show Answer


Q61) The aqueous solution of aluminium chloride is acidic due to Show Answer


Q62) The ionic product of water will increase if Show Answer


Q63) A white salt is readily soluble in water and gives a colourless solutions with a pH of about 9. The salt would be Show Answer


Q64) A monoprotic acid in a 0.1 M solution ionized to 0.001 %. Its ionisation constant is Show Answer


Q65) The value of ionic product of water at 393 K is Show Answer


Q66) Hydrogen ion concentration in mol / L in solution of pH = 5.4 will be Show Answer


Q67) Which of the following salts undergoes anionic hydrolysis ? Show Answer


Q68) The compound whose 0.1 M solution is basic is Show Answer


Q69) Which of the following mixture solution has pH= 1.0 ? Show Answer


Q70) The pH of 0.1 M solution of following increase in the order Show Answer


Q71) The solubility of AgCl will be minimum in Show Answer


Q72) which of the following solutions can not act as a buffer ? Show Answer


Q73) Two solution containing equimolar mixture of sodium acetate and acetic acid , some more amount of sodium acetate solution is added. The pH of mixture solution Show Answer


Q74) The number of moles of acid and base required by 1 litre of buffer to alter its pH by one unit is called Show Answer


Q75) What is incorrect about buffer solution ? Show Answer


Q76) which buffer solution out of the following will have pH > 7 ? Show Answer


Q77) The product of ionic concentration in saturated solution of an electrolyte at the given temperature is constant and is known as Show Answer


Q78) when HCl gas is passed through a saturated solution of common salt, pure NaCl is precipitated because Show Answer


Q79) Which of the following is most soluble? Show Answer


Q80) A mixture of a weak acid (say acetic acid) and its salt with a strong base ( say sodium acetate) is a buffer solution . which other pair of substance from the following may have a similar property? Show Answer


Q81) Buffer solution can be obtained by mixing aqueous solution of Show Answer


Q82) Which one of the following is the buffer solution of strong acidic nature ? Show Answer


Q83) A buffer solution of pH = 9 can be prepared by mixing Show Answer


Q84) The solubility of AgI in NaI solution is less than that in pure water because Show Answer


Q85) Which one of the following is not a buffer solution ? Show Answer


Q86) Why are strong acids generally used as standard solutions in acid - base titrations ? Show Answer


Q87) Addition of 0.05 mole of NaOH to one litre of a buffer solution changes pH from 5.7 to 5.85. The buffer capacity is Show Answer


Q88) The pH indicators are Show Answer


Q89) 1 M NaCl and 1 M HCI are present in an aqueous solution. The solution is Show Answer


Q90) An acidic buffer solution can be prepared by mixing solution of Show Answer


Q91) An acidic buffer solution can be prepared by mixing equimolar amounts of Show Answer


Q92) Precipitation takes place when the ionic product Show Answer


Q93) Which of the following cannot act as a Lewis acid or Bronsted acid ? Show Answer


Q94) Which of the following is a Bronsted acid as well as a Bronsted base ? Show Answer


Q95) Which of the following bases is the weakest ? Show Answer


Q96) An aqueous solution of sodium carbonate has a pH greater than 7 beause Show Answer


Q97) Species acting both as Bronsted acid and base is Show Answer


Q98) The pH at the equivalence point of a titration may differ from 7.0 because of Show Answer


Q99) The pH of a solution obtained by mixing 50 ml of 0.4 M HCl with 50 ml of 0.2 M NaOH is Show Answer


Q100) The pH of a 0.1 M aqueous solution of a weak acid (HA) is 3. Its degree of dissociation is Show Answer


Q101) The degree of dissociation of an electrolyte Show Answer


Q102) Strength of an acid depends on : Show Answer


Q103) Degree of ionization depends on Show Answer


Q104) The extent to which one mole of an acid or a base dissociated when an equilibrium is attained is called : Show Answer


Q105) Relation between ionization and dilution is given by Show Answer


Q106) The degree of dissociation of an electrolyte : Show Answer


Q107) The strongest acid among the following is Show Answer


Q108) Which of the following is the weakest base ? Show Answer


Q109) According to the Lewis concept, an acid is a substance which Show Answer


Q110) Conjugate acid of strong base is Show Answer


Q111) According to Bronsted - Lowry concept an acid is Show Answer


Q112) The solution of acid and base Show Answer


Q113) Strength of an acid depends on Show Answer


Q114) The degree of dissociation of a weak electrolyte in aqueous solution : Show Answer


Q115) The residual part of an acid after loss of proton by it will act as : Show Answer


Q116) Among the following pairs, the one representing a conjugate pairs of an acid and base is Show Answer


Q117) Which of the following is not a Lewis base ? Show Answer


Q118) Which of the following is amphoteric in nature ? Show Answer


Q119) Among the following, the one which does not represent a conjugate pair is: Show Answer


Q120) Phenolphthalein does not act as an indicator for the titration between Show Answer


Q121) Which out of the following can act as Bronsted acid and base ? Show Answer


Q122) Which of the following cannot act as Bronsted acid as well as Bronsted base ? Show Answer


Q123) Aluminium chloride is a / an : Show Answer


Q124) The correct mathematical expression for Ostwald dilution law is Show Answer


Q125) 0.1 M acetic acid ionizes to an extent of 1.34%. Ionisation constant of acetic acid is Show Answer


Q126) Which of the following is the Lewis acid ? Show Answer


Q127) Ostwald's dilution law can be satisfactorily applied to the solution of Show Answer


Q128) Among the following, whose acidic behaviour cannot be explained by Lowry-Bronsted concept ? Show Answer


Q129) The degree of dissociation of an acid HA in 0.1 M solution is 0.1, its dissociation constant is : Show Answer


Q130) The degree of dissociation of a 0.1 M weak acid solution is 0.001. The ionization constant of weak acid will be : Show Answer


Q131) Which of the following can act both as a Bronsted acid and a Bronsted base ? Show Answer


Q132) The value of dissociation constants of some acids are given below ? Indicate which is the strongest acid in water ? Show Answer


Q133) The values of dissociation constants of bases are given below. Which is the weakest base ? Show Answer


Q134) Which of the following is a conjugate acid base pair ? Show Answer


Q135) According to Ostwald's dilution law, degree of dissociation of weak base is given by Show Answer


Q136) An organic acid is one percent dissociated in M/10 solution. What is it's degree of dissociation in M/100 ? Show Answer


Q137) Which of the following is not a Lewis acid ? Show Answer


Q138) The pH may be defined as the negative logarithm of Show Answer


Q139) If an acid is diluted Show Answer


Q140) In 100 mL of an aqueous HCl of pH 1.0, 900 mL of distilled water is added.The pH value of the resultant solution will become Show Answer


Q141) An aqueous solution of an acid is characterized by the presence in the solution of: Show Answer


Q142) The ionization of water is : Show Answer


Q143) The pH pure water is temperature Show Answer


Q144) When a drop of acid is added to water its pH Show Answer


Q145) pH of a millimolar HCl is Show Answer


Q146) Decinormal solution of acetic acid ionizes to an extent of 1.3%. pH of this solution will be
(log 1.3 = 0.11) Show Answer


Q147) pH of solution is 10. Hydroxide ion concentration in the solution is Show Answer


Q148) pH of 0.001 M NaOH aqueous solution is : Show Answer


Q149) The pH of a solution is 4.0. To the solution, sufficient acid is added to decrease the pH to 2.0. The increase in hydrogen ion concentration must be Show Answer


Q150) pH of a solution is 0 (zero), solution is Show Answer


Q151) Which of the following statement is wrong (assume complete dissociation of the acid ) ? Show Answer


Q152) Assuming complete dissociation, which of the the following solution will have different pH ? Show Answer


Q153) The pH of 0.01 N solution of monobasic acid is five. The acid involved will be Show Answer


Q154) 2 g of NaOH is dissolved in one litre water. pH of the solution will be Show Answer


Q155) The pH of the given solution is3. The hydrogen ions concentration in moles per litre is Show Answer


Q156) Which of the following has the highest pH ? Show Answer


Q157) The pH of a 0.005 molar aqueous solution of sulphuric acid is approximately Show Answer


Q158) 20 mL of HCl is completely neutralised with 40 mL.of 0.05M NaOH. The pH of HCl is Show Answer


Q159) The pH value of an acid solution is 2. On dilution with water, its pH increases to 3. The solution has been diluted : Show Answer


Q160) The pH value of a 10 M solution of HCl is Show Answer


Q161) Which of the following has the highest pH value ? Show Answer


Q162) Which when added to 30 mL of 0.1 M solution of NaOH would cause a maximum change in pH value ? Show Answer


Q163) The hydrogen ion concentration (g ions per litre) of a neutral solution is Show Answer


Q164) 5.6 gm of KOH are added to 1 litre of solution. The pH value of the solution is Show Answer


Q165) The pH of 100 mL of an acid is 1. The pH of same acid of 200 mL is 2. The pH of mixture is ? Show Answer


Q166) On adding 20 mL of N/10 NaOH solution to 10 mL of N/10 HCl, the resulting solution will Show Answer


Q167) The pH of solution obtained by mixing 50 mL of 0.4 M HCl and 50 mL of 0.2 M NaOH would be Show Answer


Q168) If the pH of a solution of a dibasic acid is 2 its normality will be Show Answer


Q169) The concentration of a diabasic acid whose pH is 1.6990, assuming complete ionisation is Show Answer


Q170) When 0.1 N solution of an acid at room temperature has ionisation of 10% the concentration of hydroxyl ions in g ion per litre would be Show Answer


Q171) The pH of 0.05 M solution of diabasic acid is Show Answer


Q172) The pH of a solution is correctly defined as Show Answer


Q173) A weak and dissociates to the extent of 2% in a centimolar solution. Its dissociation constant is Show Answer


Q174) pH of a 0.1 molar solution acetic acid solution, which is dissociated 0.1 percent is ? Show Answer


Q175) Which of the following solutions has highest pH ? Show Answer


Q176) The addition of solid sodium carbonate to pure water causes Show Answer


Q177) The process of neutralization essentially results in the formation of Show Answer


Q178) An aqueous solution of ammonium acetate is Show Answer


Q179) Upon dilution, the pH of a solution of salt of weak base and strong acid Show Answer


Q180) A solution of ferric chloride is acidic in nature because : Show Answer


Q181) Which of the following solution will have the maximum pH ? Show Answer


Q182) Which of the following undergoes hydrolysis ? Show Answer


Q183) The blue litmus is turned red by an aqueous solution of Show Answer