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Which among the following is considered as the cleanest fuel? (a) cow dung cake (b) petrol (c) kerosene hydrogen gas

ScienceClass 8CBSEAnswered 28 Mar 2026
Answer
  • Soln:

Answer is (d) hydrogen gas

Explanation:

Hydrogen gas is called a clean fuel as it does not produce any dangerous gases. It can only produce heat and water as products.

Science · Class 8