NEET UG CHEMISTRY MCQ: CO-ORDINATION COMPOUNDS

1 Hard

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Understanding +4 | -1

Assertion (A): The electronic absorption spectrum of the tetrahedral complex,

\left[{CoCl}_4\right]^{2-}

shows bands which are more intense compared to the absorption bands for the octahedral complex

\left[{Co}\left({H}_2 {O}\right)_6\right]^{2+}

.

Reason (R) : The octahedral complexes possess a centre of symmetry.

View answer and explanation

Correct option: B

Both

\mathbf{A}

and

\mathbf{R}

are true but

\mathbf{R}

is not the correct explanation of

\mathbf{A}

Option B (Both

\mathbf{A}

and

\mathbf{R}

are true but

\mathbf{R}

is not the correct explanation of

\mathbf{A}

) is correct because both the assertion and the reason are true statements, but the reason (presence of a center of symmetry in octahedral complexes) does not explain why tetrahedral complexes have more intense absorption bands.

NEET UG CHEMISTRY MCQ: CO-ORDINATION COMPOUNDS

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