Question

Which of the following statements is correct?

• A. Sodium carbonate decomposes on heating.
• B. Sodium bicarbonate is more soluble in water than potassium bicarbonate.
• C. Sodium when heated with excess of $O_{2}$, gives peroxide.
• D. Lithium halides are highly ionic in nature.

Answer 1

Answer: (C)

Sodium when heated with excess of $O_{2}$, gives peroxide.

Answer 2

: Only (3) is the correct statement, others are incorrect and these are corrected as

(1) Lithium carbonate decomposes on heating.

(2) Potassium bicarbonate is more soluble in water than sodium bicarbonate.

(4) Lithium halides are highly covalent in nature.