With reference to green hydrogen, consider the following statements:1. It can be used directly as a fuel for internal combustion.2. It can be blended with natural gas and used as fuel for heat or power generation.3. It can be used in the hydrogen fuel cell to run vehicles.How many of the above statements are correct?
✓ Correct answer: c) All three
ExplanationGreen hydrogen is a renewable energy source that, unlike coal and oil, solely releases water vapour and leaves no residue in the air.Statement 1 is correct: Hydrogen, a zero-carbon fuel, can be used to power automobiles through both hydrogen internal combustion engines and hydrogen fuel cells.Hydrogen engines utilize hydrogen in an internal combustion engine, operating similarly to the way gasoline powers conventional engines.Statement 2 is correct: Clean hydrogen may be created and injected into natural gas pipelines to create blends that can be utilised to provide heat and power with fewer emissions than just natural gas.Statement 3 is correct: A fuel cell harnesses the chemical energy of green hydrogen or alternative fuels to generate electricity in a clean and efficient manner.When hydrogen serves as the fuel, the sole byproducts produced are electricity, water, and heat.SUPER HINT Again, "CAN" and “Some” = possibility logic, not abso- lute.If even one example exist, the statement is likely correct.UPSC uses "can" and “some” to lower the bur- den of proof → harder to elimi
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