CBSE 2025 · Region 6 · Set 1 · Q5 · 1 mark
The colour of the solution observed after about $\displaystyle 1$ hour of placing iron nails in copper sulphate solution is
Official answer
From CBSE’s own marking scheme for this paper.
(B)
Pale green
Chemical Reactions and EquationsDisplacement and Double Displacement ReactionsRemembermcqeasy
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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.