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12th Standard English Medium Chemistry Subject Ionic Equilibrium Creative 5 Mark Questions with Solution Part - I

12th Standard

    Reg.No. :
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Chemistry

Time : 00:30:00 Hrs
Total Marks : 25
    5 x 5 = 25
  1. A buffer solution containing 0.1 mole of ammonium hydroxide and 0.15 mole of ammonium chloride per litre of the solution. Calculate the pH of the buffer solution. Kb for ammonium hydroxide is 1.8 x 10-5.

  2. Calculate the pH of 0.1 M NH4OH if Kb = 1.75 x 10-5

  3. Explain buffer action in an acidic buffer.

  4. On hydrolysis of salts of strong acid and strong base, the solution obtained is neutral. Justify your answer with a suitable example

  5. Derive the hydrolysis constant for the hydrolysis of salt of strong base and weak acid. Deduce its pH.

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