Which expensive metals are fitted into catalytic converters of the automobiles for reducing emission of poisonous gases ?
A. Platinum-palladium and rhodium
B. Silver, Gold
C. Platinum and Gold
D. Rhodium and Silver
Answer:A
Which expensive metals are fitted into catalytic converters of the automobiles for reducing emission of poisonous gases ?
A. Platinum-palladium and rhodium B. Silver, Gold C. Platinum and Gold D. Rhodium and Silver