Which of the following is incorrect regarding s-block elements ?

Options

A. They do not occur in the free state.
B. They are scarcely distributed in nature in the combined state.
C. Alkali metals mostly occur as halides, oxides, silicates, borates, and nitrates.
D. Alkaline earth metals mainly occur as silicates, carbonates, sulphates, and phosphates.

Answer

B

Explanation

Both alkali and alkaline earth metals are highly reactive and, hence, do not occur in the free state but are widely distributed in nature in the combined state.