Which of the following sets are correctly matched?
(i) $\mathrm{B}_2 \mathrm{H}_6$ - electron deficient hydride
(ii) $\mathrm{NH}_3$ - electron precise hydride
(iii) $\mathrm{H}_2 \mathrm{O}$ - electron rich hydride
Which of the following, on thermal decomposition, form both acidic and basic oxides along with $\mathrm{O}_2$ ?
(i) $\mathrm{NaNO}_3$
(ii) $\mathrm{Ca}\left(\mathrm{NO}_3\right)_2$
(iii) $\mathrm{Be}\left(\mathrm{NO}_3\right)_2$
(iv) $\mathrm{LiNO}_3$
The correct option is
Identify the correct sets
(i) Boron fibres - bullet proof vest
(ii) Metal borides - protective shields
(iii) Borax - glass wool
Correct option is
Which of the following is /are ionic in nature?
(i) $\mathrm{GeF}_4$
(ii) $\mathrm{SnF}_4$
(iii) $\mathrm{PbF}_4$
The correct option is