Question

The solubility of MX, MX₂ and MX₃ is 10^–4 mole per litre. Hence their solubility products are respectively:
1. 10^–6, 4 × 10^–9, 27 × 10^–12
2. 10^–8, 4 × 10^–12, 27 × 10^–16
3. 10^–9, 8 × 10^–8, 32 × 10^–12
4. None of these

Answer 1

Correct Answer - Option 2 : 10^–8, 4 × 10^–12, 27 × 10^–16

Salt       K_sp

MX       S² = 10^–8

MX₂      4S³ = 4 × 10^–12

MX₃      27S⁴ = 27 × 10^–16