Which of the following statement about the sulphate of alkali metal is correct ?

Options

A. Except `Li_(2)CO_(2)` all sulphate of other alkali metals are soluble is water
B. All sulphate salt of alkali metals except lithium sulphate forms alum
C. All sulphate salts of alkali metals except lithium sulphate do not decomposes at high temperature
D. All of these

Answer

D

Explanation

All are facts