Question

Consider a titration of potassium dichromate solution with acidified Mohr's salt solution using diphenylamine as indicator. The number of moles of Mohr's salt required per mole of dichromate is

(a) 3

(b) 4

(c) 5

(d) 6

Answer 1

Correct option  (d) 6

Explanation:

Mole ratio is reverse of x-factor ratio. Thus, one mole of dichromate required = 6 moles of Mohr's salt