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JEE Main 20206 SeptemberMorning Shift
Exam
JEE Main
Year
2020
Date
6 September
Shift
Morning Shift
Subject
Chemistry
Chapter
Ionic Equilibrium

JEE Main 2020 · 6 September · Morning Shift · Chemistry · Ionic Equilibrium

Arrange the following solutions in the decreasing order of pOH :...

Arrange the following solutions in the decreasing order of pOH :
(A) 0.01MHCl0 . 01MHCl
(B) 0.01MNaOH0 . 01MNaOH
(C) 0.01MCH3COONa0 . 01{MCH}_{3}COONa
(D) 0.01MNaCl0 . 01MNaCl

Options

  1. A(A)>(C)>(D)>(B)( A ) > ( C ) > ( D ) > ( B )
  2. B(A)>(D)>(C)>(B)( A ) > ( D ) > ( C ) > ( B )
  3. C(B)>(C)>(D)>(A)( B ) > ( C ) > ( D ) > ( A )
  4. D(B)>(D)>(C)>(A)( B ) > ( D ) > ( C ) > ( A )

Correct answer

B. (A)>(D)>(C)>(B)( A ) > ( D ) > ( C ) > ( B )

Step-by-step solution

pHpH 0.01MHCl=20 . 01MHCl = 2
pHpH of 0.01MNaOH=120 . 01MNaOH = 12
pHpH of 0.01MCH3COONa>70 . 01{MCH}_{3}COONa > 7
pHpH of 0.01MNaCl=70 . 01MNaCl = 7
So the order of pH:B>C>D>ApH: B > C > D > A

So the order of pOH:B<C<D<ApOH: B < C < D < A

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