NEET UG CHEMISTRY MCQ: CO-ORDINATION COMPOUNDS

1 Hard

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Understanding +4 | -1

Assertion : All tetrahedral complexes are mainly high spin and the low spin configurations are rarely observed.
Reason:

\Delta {\text{t}}

is always much smaller even with stronger field ligands and it is never energetically favourable to pair up the electrons.

View answer and explanation

Correct option: A

If both Assertion & Reason are True & the Reason is a correct explanation of the Assertion.

Option A is correct because tetrahedral complexes usually have high spin configurations due to the smaller crystal field splitting energy (

\Delta t

), and this is because it's rarely energetically favorable to pair up electrons.

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