Question

Choose the most appropriate option from the list given below to fill in the blanks.

[NO, Nessler’s reagent, NO_2, Iron, brown ring, magnesium, Haber’s, Ostwald, Iron (II) sulphate, Hydrogen, Iron (III) sulphate]

A yellow non-metal, sulphur reacts with nitric acid to liberate ______.

Answer 1

A yellow non-metal, sulphur reacts with nitric acid to liberate `bbunderline(NO_2)`.

Explanation:

Sulphur reacts with concentrated nitric acid and gets oxidised to sulphuric acid, while nitrogen dioxide (NO₂) is liberated.

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