Saleha Pervez and Vandana Solutions for Chapter: p-Block Elements, Exercise 5: Chapter Practice

Arrange the following hydrides in the decreasing order of their basicities:

${\mathrm{NH}}_3, {\mathrm{AsH}}_3, {\mathrm{SbH}}_3, {\mathrm{BiH}}_3 \mathrm{and} {\mathrm{PH}}_3$

Which of the following hydrides has the lowest boiling point?
 

Sulphuric acid is manufactured by

The key step in manufacturing ${\mathrm{H}}_2{\mathrm{SO}}_4$ is

Match the following columns and choose the correct option using the codes given below:

Sugar gets charred on addition of concentrated sulphuric acid. Give reason.

Draw the molecular structure of ${\mathrm{XeF}}_2, {\mathrm{XeF}}_4, {\mathrm{XeO}}_2{\mathrm{F}}_2$, indicating the location of lone pairs of electrons.