Question

2. Hydrogen gas is not liberated when a metal reacts with concentrated
nitric acid because nitric acid
A) does not contain hydrogen atoms
B) oxidises itself
C) oxidises hydrogen to form water
D) is a strong reducing agent and gains hydrogen​

Answer 1

Answer:

(C) Oxidises H2 to form Water

Explanation:

Nitric Acid is a strong Oxidising Agent...

Generally, When a metal reacts with an Acid , H2 gas gets liberated with the formation of the Salt Of the Metal...

But, A strong Oxidising Agent like HNO3 Converts the H2 to H20 { Oxidation Reaction}

On the Contrast, Metals like Mn and Mg can react with Very Very Dilute HNO3 to produce H2