The number of amphoteric oxides from the following is
$CO_2, GeO_2, SnO_2, PbO_2, CO, GeO, SnO, PbO$

The catenation tendency of $C, Si$ and $Ge$ is in the order $Ge < Si < C$. The bond energies (in $kJ \ mol^{-1}$) of $C-C, Si-Si$ and $Ge-Ge$ bonds,respectively,are:

What is obtained by the reaction of $N_2$ with calcium carbide $(CaC_2)$?

In atomic reactors,graphite is used as a

Which of the following halides does not hydrolyse at room temperature?

In the following reaction,identify the nature of the product formed by the complete hydrolysis of the underlined atom at $R.T.$:
$\underline{Si}Cl_4 + H_2O \longrightarrow H_4SiO_4 + HCl$