Arrange the following solutions in the decreasing order of pOH : (A) 0 . 01   MHCl (B) 0 . 01  …

Arrange the following solutions in the decreasing order of pOH :
(A) 0.01 MHCl
(B) 0.01 MNaOH
(C) 0.01 MCH3COONa
(D) 0.01 MNaCl
  1. (A)>(C)>(D)>(B)
  2. (A)>(D)>(C)>(B)
  3. (B)>(C)>(D)>(A)
  4. (B)>(D)>(C)>(A)

Solution

   pH 0.01MHCl=2
pH of 0.01MNaOH=12
pH of 0.01MCH3COONa>7
pH of 0.01MNaCl=7
So the order of pH:B>C>D>A

So the order of pOH:  B<C<D<A

Asked in: JEE Main 2020 (06 Sep Shift 1)

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