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Q37·GS Paper 1 · Prelims 2024

Fuel Cell Electric Vehicle Emissions

S&TEnergy & NuclearFactual singleEasyCurrent-affairs-linked

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

Explanation

Hydrogen Fuel Cell Electric Vehicles (FCEVs) generate electricity by electrochemically combining hydrogen gas from the tank with oxygen from the air. The only chemical byproduct of this reaction emitted from the exhaust pipe is pure water vapour (H2O).

The defining environmental advantage of hydrogen fuel cell vehicles over internal combustion engines is their zero-emission exhaust, yielding only water.

Answer: (d).

Question details

Year

2024

Paper

GS Paper 1

Question

Q37

Subject

Science & Technology

Sub-topic

Energy & Nuclear

Type

Factual single

Difficulty

Easy

Nature

Current-affairs-linked

Source hint

National Green Hydrogen Mission / FCEV Zero Emission Payouts 2023

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