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Dilution processes of different aqueous solutions, with water, are given in LIST-I. The effects of dilution of the solutions on [H + ] are given in LIST-II. (None : Degree of dissociation ( α ) of weak acid and weak base is << 1; degree of hydrolysis of salt << 1; [H + ] represents the concentration of H + 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 [H + ] 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 [H + ] changes to half of its initial value on dilution R. (20 mL of 0.1 M HCl + 20 mL of 0.1 M ammonia solution) diluted to 80 mL 3. the value of [H + ] changes to two times of its initial value on dilution S. 10 mL saturated solution of Ni(OH) 2 in equilibrium with excess solid Ni(OH) 2 is diluted to 20 mL (solid Ni(OH) 2 is still present after dilution). 4. the value of [H + ] changes to 2 1 times of its initial value on dilution 5. the value of [H + ] changes to 2 times of its initial value on dilution CAREER POINT CAREER POINT , CP Tower, IPIA, Road No.1, Kota (Raj.), : 0744-6630500 | www.ecareerpoint.com Email: info@cpil.in Page # 29 Paper-2 Match each process given in LIST-I with one or more effect(s) in LIST-II. The correct option is

1. P → 4; Q → 2; R → 3; S → 1
2. P → 4; Q → 3; R → 2; S → 3
3. P → 1; Q → 4; R → 5; S → 3
4. P → 1; Q → 5; R → 4; S → 1

Correct answer: P → 1; Q → 5; R → 4; S → 1

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