Question

The volume of 0.01 M KMnO₄ solution which can oxidize 20 ml of 0.05 M Mohr salt solution in acidic medium is

(a) 10 ml

(b) 20 ml

(c) 30 ml

(d) 40 ml

Answer 1

Correct option is (b) 20 m

MIV₁Z₁ = M₂V₂Z₂

0.01 x V₁ x 5 = 0.05 x 20 x 1

V₁ = 20 ml