Give the name of the basic structural unit of silicates and provide its examples.

Consider the oxides of group $14$ elements $SiO_2$,$GeO_2$,$SnO_2$,$PbO_2$,$CO$ and $GeO$. The amphoteric oxides are

Which of the following is an example of a neutral oxide?

Select the member$(s)$ of group $14$ that $(i)$ forms the most acidic dioxide,$(ii)$ is commonly found in $+2$ oxidation state,$(iii)$ used as semiconductor.

What do you understand by $(a)$ inert pair effect,$(b)$ allotropy,and $(c)$ catenation?

The formula of Feldspar is: