The solubility product of Ag2CrO4 is 32 &time

Previous Year Papers

Download Solved Question Papers Free for Offline Practice and view Solutions Online.

Test Series

Take Zigya Full and Sectional Test Series. Time it out for real assessment and get your results instantly.

Test Yourself

Practice and master your preparation for a specific topic or chapter. Check you scores at the end of the test.
Advertisement

 Multiple Choice QuestionsMultiple Choice Questions

101.

The pH of a 0.1 M solution of NH4OH (having Kb =1.0 x 10-5) is equal to

  • 10

  • 6

  • 11

  • 12


102.

Which of the following salts will not undergo hydrolysis?

  • NH4Cl

  • KCN

  • KNO3

  • Na2CO3


103.

The heat of neutralisation of a strong acid and a strong alkali is 57.0 kJ mol-1.The heat released when 0.5 mole of HNO3 solution is mixed with 0.2 mole of KOH is 

  • 57.0 kJ

  • 11.4 kJ

  • 28.5 kJ

  • 34.9 kJ


104.

Ammonium acetate which is 0.01 M, is hydrolysed to 0.001 M concentration. Calculate the change in pH in 0.001 M solution, if initially pH = pKa

  • 5

  • 10

  • 100

  • 1


Advertisement
Advertisement

105.

The solubility product of Ag2CrO4 is 32 × 10-12. What is the concentration of CrO42- ions in that solution?

  • 2 × 10-4

  • 16 × 10-4

  • 8 × 10-4

  • 12× 10-4


A.

2 × 10-4

Ag2CrO4  2Ag+ 2s+ CrO42-sKsp= [ Ag+]2 [ CrO42-]      = (2s)2(s)Ksp= 4s3s =Ksp41/3   =32 × 10-1241/3  = 2 × 10-4 M


Advertisement
106.

Conjugate acid-base pair differ by

  • electron

  • proton

  • neutron

  • hydroxyl group


107.

Which is not an example of common ion effect?

  • NaCl+ AgCl

  • H2S+ HCl

  • CH3COOH+ NaOH

  • NH4OH+ NH4Cl


108.

NH4Cl is acidic due to

  • cationic hydrolysis

  • anionic hydrolysis

  • its ionic nature

  • pH > 7


Advertisement
109.

An acid solution of pH = 6 is diluted 1000 times, the pH of the final solution becomes

  • 6.01

  • 9

  • 3.5

  • 6.99


110.

The conjugate acid of HS- is

  • S2-

  • H2S

  • Both (a) and (b)

  • None of these


Advertisement