1. Tardigrade
  2. Question
  3. Chemistry
  4. Arrange the following solutions is the decreasing order of pOH: (A) 0.01 M HC l (B) 0.01 M NaOH (C) 0.01 M CH 3 COONa (D) 0.01 M NaCl

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Q. Arrange the following solutions is the decreasing order of $pOH$ :
(A) $0.01 M HC l$
(B) $0.01 M NaOH$
(C) $0.01 M CH _{3} COONa$
(D) $0.01 M NaCl$

JEE MainJEE Main 2020Equilibrium

Solution:

(1) $HCl \rightarrow$ Strong acid

(2) $NaOH \rightarrow$ Strong acid

(3) $CH _{3} COONa \rightarrow$ Salt of strong base and weak acid

(4) $NaCl \rightarrow$ Salt of strong acid and strong base

$pH$ order $( B )>( C )>( D )>( A )$

$pOH$ order $( A )>( D )>( C )>( B )$