Question

The catalyst used in the manufacture of HNO₃ is ______.

विकल्प

• Pt

• V₂O₅

• Fe

• Pd

Answer 1

The catalyst used in the manufacture of HNO₃ is Pt.

Explanation:

In the Ostwald process for manufacturing nitric acid, ammonia is oxidised in the presence of a platinum catalyst at high temperature to form nitric oxide.

\[\ce{4NH3 + 5O2 ->[Pt]4NO + 6H2O}\]

Answer 2

The catalyst used in the manufacture of HNO₃ is Pt.

Explanation:

In the Ostwald process for manufacturing nitric acid, ammonia is oxidised in the presence of a platinum catalyst at high temperature to form nitric oxide.

\[\ce{4NH3 + 5O2 ->[Pt]4NO + 6H2O}\]