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Science · 2025 · 1 mark
CBSE 2025 · Region 5 · Set 1 · Q3
A common feature observed in the crystals of washing soda, copper sulphate, gypsum and ferrous sulphate is that all
A common feature observed in the crystals of washing soda, copper sulphate, gypsum and ferrous sulphate is that all
Official answer
(C)
have fixed number of molecules of water of crystallisation in one formula unit of these salts.
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CBSE Class 10 Science past-paper question from the 2025 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.