NCERT Solutions for Chapter: The p-Block Elements, Exercise 1: Short Answer Type

${\mathrm{Pb}}^{4+}$ acts as an oxidising agent but ${\mathrm{Sn}}^{2+}$ acts as a reducing agent.

Explain the following :

Electron gain enthalpy of chlorine is more negative as compared to fluorine.

Explain the following :

$\mathrm{Tl}({\mathrm{NO}}_3{)}_3$ acts as an oxidising agent.

Explain the following :

Carbon shows catenation property but lead does not.

Explain the following :

${\mathrm{BF}}_3$ does not hydrolyse.

Explain the following :

Why does the element silicon, not form a graphite like structure whereas carbon does.

Identify the compounds $\mathrm{A}, \mathrm{X}$ and $\mathrm{Z}$ in the following reactions :

(i)  $\mathrm{A} + 2\mathrm{HCl} + 5{\mathrm{H}}_2\mathrm{O} \to 2\mathrm{NaCl} + \mathrm{X}$

$\mathrm{X}\underset{370 \mathrm{K}}{\overset{∆}{\to }}{\mathrm{HBO}}_2\underset{>370\mathrm{K}}{\overset{∆}{\to }}\mathrm{Z}$

Complete the following chemical equations :

$$\begin{gathered} \mathrm{Z} + 3 {\mathrm{LiAlH}}_4\to \mathrm{X} +3 \mathrm{LiF} + 3{\mathrm{AlF}}_3 \\ \mathrm{X} + 6{\mathrm{H}}_2\mathrm{O}\to \mathrm{Y}+6{\mathrm{H}}_2 \\ \mathrm{X}+3{\mathrm{O}}_2\stackrel{∆}{\to }+{\mathrm{B}}_2{\mathrm{O}}_3+3{\mathrm{H}}_2\mathrm{O} \end{gathered}$$