Dilution processes of different aqueous solutions, with water, are given in List-I. The effects of dilution of the solution on are given in List-II.

Note: Degree of dissociation () of weak acid and w

Question

Dilution processes of different aqueous solutions, with water, are given in List-I. The effects of dilution of the solution on are given in List-II.

Note: Degree of dissociation () of weak acid and weak base is ; degree of hydrolysis of salt ;  represents the concentration of  ions.

| List-I | List-II |
|---|---|
| P. (10 mL of 0.1 M NaOH + 20 mL of 0.1 M acetic acid) diluted to 60 mL | 1. the value of  does not change on dilution |
| Q. (20 mL of 0.1 M NaOH +20 mL of 0.1 M acetic acid) diluted to 80 mL | 2. the value of  changes to half of its initial value on dilution |
| Q. (20 mL of 0.1M HCl + 20 mL of 0.1 M ammonia solution) diluted to 80 mL | 3. the value of  changes to two times of its initial value on dilution. |
| Q. 10 mL saturated solution of  in equilibrium with excess solid  is diluted to 20 mL [solid  is still present after dilution]. | 4. the value of  changes to  times of its initial value on dilution |
| - | 5. the value of changes to  times of its initial value on dilution |

Match each process given in List-I with one or more effect(s) in List-II. The correct option is

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