JEE Advanced Chemistry question

The pair(s) of coordination complexes/ions exhibiting the same kind of isomerism is/are

(A)[Cr(NH_3)_5Cl]Cl_2 and [Cr(NH_3)_4Cl_2]Cl
(B) and Correct
(C) and
(D)[Pt(NH_3)_3(NO_3)]Cl and [Pt(NH_3)_3Cl]BrCorrect

Answer: (B),(D)

Solution

(octahedral ) and (square planar -type with 4 distinct positions) BOTH exhibit geometrical (cis/trans-type) isomerism — matching kind of isomerism (b). [Pt(NH_3)_3(NO_3)]Cl and [Pt(NH_3)_3Cl]Br both involve an exchange between a coordinated anionic

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Question ID VK-160140