Same chapter3 marksDifficulty: Medium
How is hydrogen collected in the laboratory and how is it tested?
Study of the First Element: Hydrogen
3 marksDifficulty: Medium
State three uses of hydrogen.
Original Khojo Papers practice question — not from a past board paper.
Answer
It is used in the Haber process to make ammonia, in hydrogenating vegetable oils into vanaspati, and in the oxy-hydrogen flame for welding and cutting metals. It is also used as a rocket fuel and in fuel cells.
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
Its very high calorific value and clean combustion make it attractive as a fuel.
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