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Chemistry
Assertion: Copper sulphate solution is not stored in zinc vessel. Reason: Zinc forms complex with CuSO4.
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Q.
Assertion:
Copper sulphate solution is not stored in zinc vessel.
Reason:
Zinc forms complex with $CuSO_4$.
AIIMS
AIIMS 2007
The d-and f-Block Elements
A
If both assertion and reason are true and reason is the correct explanation of assertion
59%
B
If both assertion and reason are true but reason is not the correct explanation of assertion
22%
C
If assertion is true but reason is false
15%
D
If both assertion and reason are false
4%
Solution:
Electropositive elements like zinc precipitate copper from a solution of copper sulphate and finally forms a complex.
$CuSO_4 + Zn \rightarrow Cu + ZnSO_{4(aq)} \rightarrow [Zn(H_2O)_4]SO_4$