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Q.

Which of the following is not a d- block element ?

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a

Lead

b

mercury

c

Molybdenum

d

Copper

answer is A.

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Detailed Solution

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lead (Z=82) has the configuration [Xe] $4 f^{14} 5 d^{10} 6 s^{2} 6 p^{2}$ is a p-block element (group 14).

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