Question

Solubility product of silver bromide is 5.0 × 10⁻¹³. The quantity of potassium bromide (molar mass taken as 120 g mol⁻¹) to be added to 1 litre of 0.05 M solution of silver nitrate to start the precipitation of AgBr is
(a) 1.2 × 10⁻¹⁰ g
(b) 1.2 × 10⁻⁹ g
(c) 6.2 × 10⁻⁵ g
(d) 5.0 × 10⁻⁸ g

Answer 1

I think d is correct answer.