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.(Note: Degree of dissociation `(alpha)` of weak acid and weak base is`lt lt1`, degree of hydrolysis of salt `lt lt1`, `[H^(+)]` represents the concentration of `[H^(+)]` ions)
Match each process given in LIST-I with one or more effect(s) in LIST-II. The correct option is

Options

A. `P to 4, Q to 2, R to 3, S to 1`
B. `P to 4, Q to 3, R to 2, S to 3`
C. `P to 1, Q to 4, R to 5, S to 3`
D. `P to 1, Q to 5, R to 4, S to 1`

Answer

D

Explanation

`P implies CH_(3)COOH + NaOH rarr CH_(3)COONa + H_(2)O`
No effect of dilution on H^(+)
`Q implies CH_(3)COOH + NaOH rarr CH_(3)COONa + H_(2)O`(salt of W/A and S/A)
`[H^(+)] = sqrt(K_(w) xx K_(a)/C),[H^(+)]_(old) = sqrt(K_(w) xx K_(a)/C), [H^(+)]_(n ew) = sqrt(K_(w) xx K_(a)/(C/2)) = [H^(+)]_(old) xx sqrt(2)`
`R implies NH_(3) + HCl rarr NH_(4)Cl`(salt of W/B and S/A)
`[H^(+)] = sqrt(K_(w) xx C/K_(b)),[H^(+)]_(old) = sqrt(K_(w) xx C/K_(b))`,` [H^(+)]_(n ew) = sqrt(K_(w) xx C/K_(b) xx 2) = [H^(+)]_(old) xx 1/sqrt(2)`
`S implies Ni(OH)_(2)(s) rarr Ni^(2+)(aq) + 2OH^(-)(aq)`
No effect of dilution on `[H^(+)]` as solution remain saturated.