Consider the following statements :

${\mathrm{S}}_1:$Fluorine does not form any polyhalide because it does not have $d$-orbitals in valence shell.

${\mathrm{S}}_2:$ In ${\mathrm{clf}}_3$, the three lone pairs of electron occupy the equatorial position.

${\mathrm{S}}_3:$ In ${\mathrm{B}}_2$ and ${\mathrm{N}}_2$ molecules mixing of $s$ - and $p$ atomic orbitals takes place.

Choose the correct option.

Fluorine does not form any polyhalide because it does not have $d$-orbitals in valence shell and in ${\mathrm{B}}_2$ and ${\mathrm{N}}_2$ molecules mixing of $s$ and $p$ atomic orbitals take place statement are correct.

Since fluorine lacks d orbitals in its valence shell, it cannot create any polyhalides. The only orbitals in the second shell will be $s$ and $p$.

$s$ and $p$ atomic orbitals mingle together in ${\mathrm{B}}_2$ and ${\mathrm{N}}_2$ molecules.

Hence, option C is correct.