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Science · 2026 · 1 mark
CBSE 2026 · Region 5 · Set 1 · Q18
Which of the following set of compounds does not belong to same homologous series?
Official answer
From CBSE’s own marking scheme for this paper.
(D)
$\displaystyle \mathrm{C}_{4} \mathrm{H}_{8}$ and $\displaystyle \mathrm{C}_{5} \mathrm{H}_{12}$
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CBSE Class 10 Science past-paper question from the 2026board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.