Question

Which of the following is correct.

• A. All carbonates are soluble in water
• B. Carbonates of $Na,$ $K$ and $NH_{4}$ are soluble in water
• C. Carbonates of $Ca,$ $Sr,$ $Ba$ are soluble in water
• D. All carbonates are insoluble

Answer 1

Answer: (B)

Carbonates of $Na,$ $K$ and $NH_{4}$ are soluble in water

Answer 2

$Na_{2}CO_{3},K_{2}CO_{3}$ and $(NH_{4})_{2}CO_{3}$ are soluble in water because hydration energy is more than lattice energy.