Wwhich of the following statements are true about the alkali metals?

Options

A. All alkali metals form oxo salts such as carbonates, sulphates and nitrates
B. the basic character of oxides increases down the group
C. Carbonates and sulphates of lithium are stable and their stability decreases down the group
D. Solubility of carbonates and sulphates increases down the group.

Answer

C

Explanation

Carbonates and sulphates of lithium decompose on heating while the stability of carbonates and sulphates of other metlas increases down the group.