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Science · 2026 · 1 mark
CBSE 2026 · Region 4 · Set 1 · Q24
In the question, two statements are given - One labelled as Assertion (A) and other labelled as Reason (R). Write the correct answer selecting the…
In the question, two statements are given - One labelled as Assertion (A) and other labelled as Reason (R). Write the correct answer selecting the appropriate option from (A), (B), (C) & (D) given below :
Assertion (A) : Pure ethanoic acid is also known as glacial acetic acid.
Reason (R) : Pure ethanoic acid often freezes during winter due to its low melting point of $\displaystyle 290$ K.
Official answer
(A)
Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A).
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CBSE Class 10 Science past-paper question from the 2026 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.