Which of the following statements in incorrect ?

Options

A. Mg burns in air releasing dazzling light rigch in UV rays.
B. Alkaline earth metals are strong reducing agent.
C. Gypsum on heating at `393K` gives plaster of paris
D. Beryllium chloride tends to form a chloro`-` bridged dimer in the solid state and is soluble in organic solvents.

Answer

4

Explanation

In the vapour phase `BeCl_(2)` tends to form a chloro`-` bridged dimer. In solid state it exists as linear polymeric structure as given below.