Question

Cold and dilute HNO₃ reacts with Cu to give ______.

विकल्प

• NO₂

• NO

• N₂

• O₂

Answer 1

Cold and dilute HNO₃ reacts with Cu to give NO.

Explanation:

Cold and dilute nitric acid reacts with copper to form nitric oxide (NO), copper nitrate, and water.

\[\ce{3Cu + 8HNO3(dil{.}) -> 3Cu(NO3)2 + 2NO + 4H2O}\]