Dr. S.N. DHAWAN, Dr. S.C.KHETERPAL and, P.N.KAPIL Solutions for Chapter: Some p-Block Elements, Exercise 1: TEST YOUR GRIP

The most stable oxidation state of aluminium is +3 while that of thallium is _____.

The structure of $\mathrm{N}{\left(\mathrm{C}{\mathrm{H}}_3\right)}_3$ is pyramidal while that of $\mathrm{N}{\left(\mathrm{S}\mathrm{i}{\mathrm{H}}_3\right)}_3$ is _____ .

$\mathrm{S}\mathrm{n}{\mathrm{Cl}}_2$ acts as a_____agent.

One recently discovered allotrope, ${\mathrm{C}}_{60}$, is known as _____. (Diamond/Buckminsterfullerene)

The $\mathrm{C}-\mathrm{C}$ bond length in diamond is _____ $\mathrm{pm}$. ($154/254$)

_____ is produced by the action of conc. ${\mathrm{H}}_2\mathrm{S}{\mathrm{O}}_4$ on potassium ferrocyanide.($\mathrm{CO}/{\mathrm{CO}}_2$)

Dehydration of formic acid gives_____.($\mathrm{CO}/{\mathrm{H}}_2$)

Out of $\mathrm{C}\mathrm{O}$ and $\mathrm{C}{\mathrm{O}}_2$, _____ forms complexes.