Q.

Zn and Cd metals do not show variable valency because:

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a

their d-subshells are completely filled

b

they are relatively soft metals

c

they have only two electrons in the outermost subshells

d

their d-subshells are partially filled

answer is B.

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Detailed Solution

Zn and Cd metals do not show variable valency because their d-subshells are completely filled.

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Zn and Cd metals do not show variable valency because: