CBSE 2025 · Region 1 · Set 2 · Q3 · 1 mark
In one formula unit of salt 'X', seven molecules of water of crystallisation are present. The salt 'X' is :
Official answer
From CBSE’s own marking scheme for this paper.
(C)
$\displaystyle \mathrm{FeSO}_{4}$
Acids, Bases and SaltsWater of CrystallisationRemembermcqeasy
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CBSE Class 10 Science past-paper question from the 2025board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.