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Which one of the following is the exhaust pipe emission from Fuel Cell Electric Vehicles powered by hydrogen?

UPSC · 2024 · Environment
Question:
Which one of the following is the exhaust pipe emission from Fuel Cell Electric Vehicles powered by hydrogen?

Options

(a) Hydrogen peroxide
(b) Hydronium
(c) Oxygen
(d) Water vapour
Answer: (d) Water vapour

Explanation:
Hydrogen fuel cells generate electricity by combining hydrogen and oxygen, producing only water vapour as the by-product, making them a clean source of energy.

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