b
Shared pairs of electrons are electrons that are used in covalent bonding. Unshared pairs of electrons are electrons that remain in the outer shell of the atom that isn't used in a covalent

bond.

In the molecule \(\mathrm{H}_{2} \mathrm{SO}_{4}\)

Electronic configuration of Oxygen is \(1 s^{2} 2 s^{2} 2 p^{4}\)

sulphur is \(1 \mathrm{s}^{2} 2 \mathrm{s}^{2} 2 \mathrm{p}^{6} 3 \mathrm{s}^{2} 3 \mathrm{p}^{4}\)

hydrogen is \(1 \mathrm{s}^{1}\)

Total no. of outermost electrons \(=6 \times 4+6 \times 1+1 \times 2=32\)

no. of shared electrons \(=2 \times\) no. of covalent bonds \(=2 \times 8=16\)

No. of unshared \(\mathrm{e}^{-} \mathrm{s}=32-16=16\)

Hence, the correct option is \(\mathrm{B}\)