In which of these processes platinum is used as a catalyst?

Question

In which of these processes platinum is used as a catalyst? (A) Oxidation of ammonia to form HNO3  (B) Hardening of oils (C) Production of synthetic rubber (D) Synthesis of methanol

Tardigrade Admin · Accepted Answer

Platinum acts as catalyst in the oxidation of ammonia to form nitric oxide. This reaction is used in the Ostwalds method of nitric acid preparation.

4 N H_{3} + 5 O_{2} Pt 75 0^{\circ} C 4 NO + 6 H_{2} O

2 NO + O_{2} \to 2 N O_{2}

4 N O_{2} + O_{2} + 2 H_{2} O \to 4 H N O_{3}

Q. In which of these processes platinum is used as a catalyst?

Oxidation of ammonia to form $H N O_{3}$

Hardening of oils

Production of synthetic rubber

Synthesis of methanol

Platinum acts as catalyst in the oxidation of ammonia to form nitric oxide. This reaction is used in the Ostwalds method of nitric acid preparation.
$4 N H_{3} + 5 O_{2} Pt 75 0^{\circ} C 4 NO + 6 H_{2} O$
$2 NO + O_{2} \to 2 N O_{2}$
$4 N O_{2} + O_{2} + 2 H_{2} O \to 4 H N O_{3}$