NTA Abhyas NEET2020ChemistryIonic EquilibriumPractice
The K s p of M g O H 2 is 1 × 10 – 12 . 0.01 M M g O H 2 will precipitate at the limiting p H -
Options
- A3
- B9
- C5
- D8
Correct answer
B. 9
Step-by-step solution
[ M g 2 + ] [ O H − ] 2 = 10 − 12 0.01 × [ O H − ] 2 = 10 − 12 O H – = 10 – 5 M ∴ H + = 10 – 9 M and p H = – log 10 – 9 = 9