Embibe Experts Solutions for Chapter: The s-Block Elements, Exercise 3: EXERCISE-3

In the electrolysis of fused calcium hydride, hydrogen is liberated at cathode.

${\mathrm{MgCl}}_2.6{\mathrm{H}}_2\mathrm{O}$ on heating forms ${\mathrm{MgCl}}_2$

Sodium when heated in excess of oxygen gives sodium oxide.

Anhydrous magnesium chloride is obtained by heating the hydrated salt with dry _____.(write name)

$\mathrm{Ca}(\mathrm{OH}{)}_2$ is _____ basic than $\mathrm{Mg}(\mathrm{OH}{)}_2$.

${\mathrm{CaH}}_2$ is commercially known as _____.

$\mathrm{Ba}$ react with cold water vigorously $\mathrm{Mg}$ reacts slowly while $\mathrm{Be}$ has _____ with boiling water.

A standard solution of sodium hydroxide cannot be prepared by direct weighing because it absorb _____ and ${\mathrm{CO}}_2$ from atmosphere.