Chemical Bonding and Molecular Structure — Chemistry STD 11 Science — Question

1. ‘l' atom has 7 valence electrons. It forms one covalence bond with another iodine atom and coordinate bond with lion in which empty orbital accepts a lone pair. The central atom has 2 bonded pair and 3 lone pair it is linear.

2. KO₂ is paramagnetic because $\text{O}^-_2$ has one unpaired electron.

$\text{O}^-_2(17)=\sigma\text{l}^2\ \sigma*\text{ls}^2\ \sigma2\text{s}^2\ \sigma*\text{2s}^2\ \sigma\text{2p}_\text{z}^2\ \pi2\text{p}_\text{x}^2\ \pi2\text{p}_\text{y}^2\ \pi*2\text{p}_\text{x}^2\ \pi*\text{2p}_\text{s}^1$