Chemistry
Grade-8
Easy

Question

Identify the pollution-free fuel from the list of fuels given below.

  1. Hydrocarbon
  2. Coal
  3. Biomass
  4. Hydrogen

hintHint:

Hydrogen can be used instead of fossil fuels in combustion engines.

The correct answer is: Hydrogen


    Hydrogen can be used instead of fossil fuels in combustion engines. Hydrogen cars give out no harmful tailpipe emissions, only water. Hydrogen fuel cells are an environmentally friendly technology that converts hydrogen into electricity through an electrochemical process that emits only water and heat and by products.

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