Question

Concentrated ${\mathrm{HNO}}_3$ reacts with Iodine to give -

Answer 1

Nitric acid:

1. ${\mathrm{HNO}}_3$ has the chemical name - Nitric acid.
2. Older samples have a yellow tint because of the breakdown of the chemical into nitrogen oxides and water.
3. The chemical itself is colorless.

Iodine:

1. Iodine is a chemical element with the atomic number 53 and the symbol $\mathrm{I}$.
2. It is the heaviest stable halogen and is a glossy, purple-black non-metallic solid.
3. In this reaction, iodine easily reacts with the acid to produce iodic acid, nitrogen dioxide, and water.

Reaction:

Nitric acid and Iodine react to give Iodic acid and Nitrogen dioxide with the formation of water.

$10{\mathrm{HNO}}_3\left(\mathrm{l}\right)+{\mathrm{I}}_2\left(\mathrm{s}\right)\to 2{\mathrm{HIO}}_3\left(\mathrm{s}\right)+10{\mathrm{NO}}_2\left(\mathrm{g}\right)+4{\mathrm{H}}_2\mathrm{O}\left(\mathrm{l}\right)$