Assertion :Zn, Cd and Hg are not regarded as transition elements. Reason: The electronic configurations of Zn, Cd and Hg are represented by the general formula $(n - 1) d^{10} n s^{2}$ .

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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Both Assertion and 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
Transition metals are defined as the elements having incompletely filled d orbitals. Since $Z n, C d$ and $H g$ have completely filled d orbital, they are not regarded as transition elements.

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