Sodium dissolves in liquid ammonia to form a solution which show electrical conductivity. Explain.

Explain: ${\mathrm{BeCl}}_2$ is covalent while ${\mathrm{MgCl}}_2$ is ionic.

Explain: Lithium floats on water while sodium floats and catches fire when put in water.

Write balanced chemical equation for the given statement: ${\mathrm{CO}}_2$ is passed into concentrated solution of $\mathrm{NaCl}$, which is saturated with ${\mathrm{NH}}_3$.

Write balanced chemical equation for $50\%$ solution of sulphuric acid is subjected to electrolyte oxidation and the product is hydrolyzed.

Write balanced chemical equation for — Magnesium is heated in air.

Write balanced chemical equation for — Beryllium oxide is treated separately with aqueous $\mathrm{HCl}$ and aqueous $\mathrm{NaOH}$ solutions.

Answer the question — Describe the diagonal relationship between $\mathrm{Li}$ and $\mathrm{Mg}$ with the help of two illustrative properties.

Answer the question- Outline the industrial production of dihydrogen from steam. Also write the chemical reaction involved.