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Chemistry · 2026 · 2 marks
CBSE 2026 · Region 5 · Set 1 · Q18
(a) Name the cell which was used in the Apollo space programme for providing electrical power. (b) Define limiting molar conductivity.
(a)
Name the cell which was used in the Apollo space programme for providing electrical power.
(b)
Define limiting molar conductivity.
Marking-scheme solution
(a)
Fuel cell / H2-O2 fuel cell
(b)
When concentration approaches zero, the molar conductivity is known as
limiting molar conductivity / Conductivity of a solution, when concentration
approaches zero.
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CBSE Class 12 Chemistry past-paper question from the 2026 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.