`{:("Column I",,"Column II"),((A) CH_(3)COONa,,(i) "Almost neutral"pH gt 7 "or "lt7),((B) NH_(4)CI,,(ii) "Acidic"pHlt7),((C)NaNO_(3) ,,(iii)"Alkaline "pH gt 7),((D) CH_(3)COONH_(4),,(iv)"Neutral "pH =7):}`

Options

A. `(A)to(i),(B)to(ii),(C)to(iii),(D)to(iv)`
B. `(A)to(ii),(B)to(iii),(C)to(iv),(D)to(i)`
C. `(A)to(iii),(B)to(ii),(C)to(iv),(D)to(i)`
D. `(A)to(iv),(B)to(i),(C)to(iii),(D)to(ii)`

Answer

C

Explanation

`(A)CH_(3)COONahArrunderset("Weak acid")(CH_(3)COO^(-))+underset("Strong base")(Na^(+))` (Basic)
(B) `NH_(4)ClhArrunderset("Weak base")(NH_(4)^(+))+underset("Strong acid")(Cl^(-))` (Acidic)
(C) `NaNO_(3)hArrunderset("Strong base")(Na^(+))+underset("Strong acid")(NO_(3)^(-))` (Neutral)
(D) `CH_(3)COONH_(4)hArrunderset("Weak acid")(CH_(3)COO^(-))+underset("Weak base")(NH_(4)^(+))` (Almost neutral)
May be slightly acidic or basic depending upon `pK_(a) and pK_(b)` value of acid and base.