Question

When three parts of concentrated hydrochloric acid reacts with one part of concentrated nitric acid, the products formed are_____, ____and____

• A. nascent chloride, water and nitric oxide
• B. nascent oxygen, water and nitric oxide
• C. nascent chloride, water and nitrosyl chloride
• D. nascent hydrogen, water and nitrosyl chloride

Answer 1

The correct option is C nascent chloride, water and nitrosyl chloride

When three parts of concentrated hydrochloric acid reacts with one part of concentrated nitric acid, the products formed are nascent chloride, water and nitrosyl chloride. The reaction is as follows: $3HCl+HN{O}_3\to NOCl+2H_{2}O+2\left[Cl\right]$
Some metals, such as gold, are insoluble even in $HN{O}_3$, but dissolve in aqua regia.​
Aqua regia: A mixture of 25% conc.​ $HN{O}_3$ and 75% conc. $HCl$. The enhanced ability of​ aqua regia to dissolve metals arises from the oxidising power of $HN{O}_3$ and the ability of $C{l}^{-}$ to form complexes with metal ions.​