Hydrogen is not liberated when trioxonitrate(v)acid reacts with zinc because
A. zinx is not rendered passive by acid B. hydrogen produced is oxidized to water C. oxides of nitrogen are produced D. all nitrates are soluble in water E. trioxonitrate(v)acid is a strong acid
Correct Answer: B
Explanation
When metals react with nitric acid, hydrogen gas is liberated. Nitric acid is a very strong oxidizing agent. So , it oxidizes the hydrogen gas formed during the reaction to form water and an oxide of nitrogen. \(Zn+4HNO_{3} \to Zn(NO_{3})_{2} + 2NO_{2} + 2H_{2}O\)
