NCERT Solutions for Chapter: The p-Block Elements, Exercise 1: Multiple Choice Questions (Type-I)

Silicon has a strong tendency to form polymers like silicones. The chain length of silicone polymer can be controlled by adding

Ionisation enthalpy $({∆}_{\mathrm{i}} {\mathrm{H}}_1 \mathrm{kJ} {\mathrm{mol}}^{–1})$ for the elements of Group $13$ follows the order.

In the structure of diborane

A compound $\mathrm{X}$, of boron reacts with ${\mathrm{NH}}_3$ on heating to give another compound $\mathrm{Y}$ which is called inorganic benzene. The compound $\mathrm{X}$ can be prepared bytreating ${\mathrm{BF}}_3$ with Lithium aluminium hydride. The compounds $\mathrm{X}$ and $\mathrm{Y}$ are represented by the formulas.

Quartz is extensively used as a piezoelectric material, it contains _____.

The most commonly used reducing agent is

Dry ice is

Cement, the important building material is a mixture of oxides of several elements. Besides calcium, iron and sulphur, oxides of elements of which of the group(s) are present in the mixture?