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Chemistry · 2026 · 2 marks
CBSE 2026 · Region 5 · Set 2 · Q18
(a) Name any two materials other than hydrogen that can be used as fuel in fuel cells. (b) Define molar conductivity.
(a)
Name any two materials other than hydrogen that can be used as fuel in fuel cells.
(b)
Define molar conductivity.
Marking-scheme solution
(a)
Methane and Methanol
(b)
Conductivity of a solution at a given concentration is the conductance of the volume
V of solution containing one mole of electrolyte kept between two electrodes with area of
cross section A and distance of unit length.
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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.