Question

The catalyst materials most commonly used are platinum, palladium and rhodium.

(a) True

(b) False

The question was posed to me during an online exam.

My doubt stems from Catalytic Converters topic in division Engine Emissions and their Control of IC Engine

Answer 1

The correct answer is:

(a) True

Platinum, palladium, and rhodium are the most commonly used catalyst materials in catalytic converters. These materials help to facilitate the chemical reactions that reduce harmful emissions from the exhaust gases, such as carbon monoxide (CO), hydrocarbons (HC), and nitrogen oxides (NOx).