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Science · 2025 · 1 mark
CBSE 2025 · Region 6 · Set 1 · Q5
The colour of the solution observed after about 1 hour of placing iron nails in copper sulphate solution is
The colour of the solution observed after about $\displaystyle 1$ hour of placing iron nails in copper sulphate solution is
Official answer
(B)
Pale green
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