The number of $\sigma \backslash sigma$ and $\pi \backslash pi$ bonds in Oxygen molecule is ………

The number of $\sigma \backslash sigma$ and $\pi \backslash pi$ bonds in Nitrogen molecule is

Ionic compounds are soluble in ………

Naphthalene is soluble in …………

The bond present in HCl is …………

The number of hybrid orbitals formed in $s{p}^{3}sp^3$ hybridisation is …………

Hybridisation is …………… of atomic orbitals.

The inert gas element which does not have octet configuration in the outermost orbit is …………

Which of the following elements form a unipositive ion?

Which of the following anions has Ne electronic configuration?