CBSE Class 12 Chemistry 2023 Delhi Set 1 Solved Paper

Question : 18 of 35

Marks: +1, -0

Assertion (A): Trans

[{Cr} {Cl}_2({ox})_2]^{3-}

shows optical isomerism.
Reason (R): Optical isomerism is common in octahedral complexes involving bidentate ligands.

Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A).
Both Assertion (A) and Reason (R) and true, but Reason (R) is not the correct explanation of the Assertion (A).
Assertion (A) is true, but Reason (R) is false.
Assertion (A) is false, but Reason (R) is true.

Solution:

Explanation: Trans

[{Cr}({Cl}_2) {CoX}_2]^{3-}

is optically inactive because of super-impossible mirror image.

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