Assertion: Cuprous ion (Cu^{+}) has unpaired | vedclass

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(D) The electronic configuration of $Cu$ is $[Ar] 3d^{10} 4s^1$.For $Cu^{+}$ (cuprous ion),the configuration is $[Ar] 3d^{10}$,which has no unpaired e

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If the Assertion is incorrect but the Reason is correct.

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(D) The electronic configuration of $Cu$ is $[Ar] 3d^{10} 4s^1$.For $Cu^{+}$ (cuprous ion),the configuration is $[Ar] 3d^{10}$,which has no unpaired electrons.For $Cu^{2+}$ (cupric ion),the configuration is $[Ar] 3d^9$,which has one unpaired electron.Therefore,the Assertion is incorrect because it states the opposite.$Cu^{+}$ is colourless due to the absence of unpaired electrons,while $Cu^{2+}$ is blue in aqueous solution due to $d-d$ transitions in the presence of water ligands. Thus,the Reason is correct.The correct option is $D$.

Assertion: Cuprous ion $(Cu^{+})$ has unpaired electrons while cupric ion $(Cu^{2+})$ does not.
Reason: Cuprous ion $(Cu^{+})$ is colourless whereas cupric ion $(Cu^{2+})$ is blue in the aqueous solution.

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Assertion: Cuprous ion $(Cu^{+})$ has unpaired electrons while cupric ion $(Cu^{2+})$ does not.Reason: Cuprous ion $(Cu^{+})$ is colourless whereas cupric ion $(Cu^{2+})$ is blue in the aqueous solution.