CBSE 2025 · Region 4 · Set 3 · Q19 · 2 marks
Name and define the cell which was used for providing electric power in the Apollo space programme. Also write its one advantage.
Marking-scheme solution
Hydrogen-Oxygen fuel cell/Fuel cell
Converts the energy of combustion of Hydrogen directly into electrical energy.
Advantage- High efficiency/Pollution free
ElectrochemistryFuel CellsRemembervery_short_answereasy
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CBSE Class 12 Chemistry past-paper question from the 2025board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.