Question : Catalytic converters are generally made from:
Option 1: Alkaline metals
Option 2: Hydrogen
Option 3: Transition metals
Option 4: Carbon
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Correct Answer: Transition metals
Solution : The correct option is - Transition metals
Catalytic converters are made of transitional metals. For instance, catalytic converters found in automobile exhaust systems can change carbon monoxide and nitrogen monoxide into the non-polluting gases nitrogen and carbon dioxide. In order to reduce the emission of harmful pollutants, these converters use transition metals.
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Question : The major constituent of air is
Option 1: Nitrogen
Option 2: Carbon dioxide
Option 3: Oxygen
Option 4: Hydrogen
Question : Silver gets corroded due to_________in air.
Option 1: oxygen
Option 2: Hydrogen sulphide
Option 3: Carbon dioxide
Option 4: Nitrogen
Question : Which gas does not form the part of atmosphere?
Option 3: Chlorine
Option 4: Carbon dioxide
Question : Which one of the following non-metals shows allotropy in the liquid state?
Option 1: Carbon
Option 2: Sulphur
Option 3: Phosphorus
Option 4: Bromine
Question : In an acid-base reaction, which product is produced along with salt?
Option 1: Hydrogen gas
Option 2: Oxygen gas
Option 4: Water
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