Question

A metal catalyst (X) is used in the catalytic converter of automobiles. This prevents the release of gas Y into the atmosphere. What are X and Y respectively?

• A. Pd, \(NO_2\)
• B. Rh, \(CO_2\)
• C. Pt, \(N_2\)
• D. Ni, \(CH_4\)

Hint:

Catalytic converters play a crucial role in reducing vehicle emissions: - Platinum (Pt) and Palladium (Pd) are used for oxidation reactions (converting CO to \((CO_2)\). - Rhodium (Rh) is used for reduction reactions (converting \(NO_x\) to \(N_2\) and \(O_2)\).

Answer 1

The Correct Option is A

Explanation: - Catalytic converters in automobiles are used to reduce harmful emissions. They primarily contain Palladium (Pd), Platinum (Pt), and Rhodium (Rh) as catalysts.
- These catalysts help in the conversion of toxic nitrogen oxides \((NO_x)\), carbon monoxide (CO), and unburnt hydrocarbons into less harmful gases.
- In this case, Palladium (Pd) is involved in the conversion of \(NO_2\) into nitrogen \((N_2)\) and oxygen \((O_2)\), reducing air pollution significantly.