What happens when $C u$ reacts with cold dilute $H N O_{3}$ ?

Open in App

Solution

Copper reacts with cold and dilute nitric acid to yield copper nitrate, water and nitric oxide.
$3 C u + 8 H N O_{3} (Dilute) ⟶ 3 C u {(N O_{3})}_{2} (Copper nitrate) + 4 H_{2} O + 2 N O (Nitric oxide)$
The formed nitric oxide combines with the oxygen of air to give brown fumes of $N O_{2}$ .
$2 N O + O_{2} ⟶ 2 N O_{2} (Brown fumes)$

Suggest Corrections

Similar questions

H C l

C u

H {N O}_{3}

C u

Which of the following metals evolves hydrogen on reacting with cold dilute $H N O_{3}$ ?

What happens when magnesium reacts with dilute sulphuric acid?

What happens when calcium bisulphite reacts with dilute nitric acid?

H N O_{3}

Join BYJU'S Learning Program