Assertion :The compounds of copper in $+ 1$ state are colorless. Reason: Due to ${3 d}^{10}$ electronic configuration of ${C u}^{2 +}$ ion no $d - d$ transition takes place.

Read the above assertion and reason and choose the correct statement regarding it.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Assertion is incorrect but Reason are incorrect

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Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
$C u^{+}$ has an electron configuration of [Ar] $4 s^{0} 3 d^{10}$ .

Thus d-d transition is not possible resulting in colorless compounds.

So, the correct option is $A$

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Assertion :The compounds of copper in +1 state are colorless. Reason: Due to 3d10 electronic configuration of Cu2+ ion no d−d transition takes place.Read the above assertion and reason and choose the correct statement regarding it.

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for AssertionCu+ has an electron configuration of [Ar] 4s03d10. Thus d-d transition is not possible resulting in colorless compounds.So, the correct option is A

Assertion :The compounds of copper in $+ 1$ state are colorless. Reason: Due to ${3 d}^{10}$ electronic configuration of ${C u}^{2 +}$ ion no $d - d$ transition takes place.

Read the above assertion and reason and choose the correct statement regarding it.

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
$C u^{+}$ has an electron configuration of [Ar] $4 s^{0} 3 d^{10}$ .

Thus d-d transition is not possible resulting in colorless compounds.

So, the correct option is $A$