Question

Select the reactants required for the laboratory preparation of nitric acid.

• A. Con.$H_{2}S{O}_4$ and $KN{O}_3$
• B. Con.$HCl$ and $KN{O}_3$
• C. Con.$H_{2}S{O}_4$ and $NaN{O}_3$
• D. Con.$HCl$ and $NaN{O}_3$

Answer 1

Answer: (A), (C)

The correct options are
A

Con.$H_{2}S{O}_4$ and $KN{O}_3$

C

Con.$H_{2}S{O}_4$ and $NaN{O}_3$

In the laboratory preparation of ammonia,we can use both $NaN{O}_3$ and $KN{O}_3$.

Nitric acid is obtained by heating a mixture of concentrated sulphuric acid and sodium or potassium nitratr at ${200}^{0}C$.

$KN{O}_3+H_{2}S{O}_4->HN{O}_3+KHS{O}_4$

or

$NaN{O}_3+H_{2}S{O}_4->HN{O}_3+NaHS{O}_4$