Question

The compound formed by the oxidation of sulphur by nitric acid is:

P Sulphuric acid

Q Nitrogen dioxide

R Sulphur dioxide

विकल्प

• Only P

• Only Q

• Only R

• Both P and Q

Answer 1

The compound formed by the oxidation of sulphur by nitric acid is both P and Q.

Explanation:

Nitric acid oxidises sulphur to sulphuric acid (H₂SO₄), while nitric acid itself is reduced to nitrogen dioxide (NO₂).

\[\ce{S + 6HNO3(conc{.}) -> H2SO4 + 6NO2 + 2H2O}\]

Hence, both P and Q are formed.