Chemistry - Complete d-block Question with Solution | TestHub

ChemistryComplete d-blockd-blockMedium2 minQB

ChemistryMediumsingle choice

Transition element is defined as one which has -

Answer:

Solution:

The correct option is (D).

A transition element must have an incompletely filled $(n - 1) d$ subshell.

This incomplete subshell can occur in the atom's ground state.

Alternatively, it can occur in any common oxidation state.

Therefore, Group 12 elements (Zn, Cd, Hg) are excluded.

They maintain a fully filled $d^{10}$ subshell in all states.

Stream:JEESubject:ChemistryTopic:Complete d-blockSubtopic:d-block

⏱ 2mℹ️ Source: QB

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