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Which one among the following is considered as the cleanest fuel?- Cowdung cake
- Petrol
- Kerosene
- Hydrogen gas
Correct Answer: (d) Hydrogen gas
Explanation: Hydrogen gas is considered as cleanest fuel. Unlike carbon-based fuels, hydrogen produces no harmful by-products on combustion. Only energy and clean water are produced.
Explanation: Hydrogen gas is considered as cleanest fuel. Unlike carbon-based fuels, hydrogen produces no harmful by-products on combustion. Only energy and clean water are produced.
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