Fundamentholfundamenthol
JEE Main2019Chemistry
Q.

The species that can have a trans-isomer is : (en = ethane-1, 2-diamine, ox = oxalate) 

  1. A

    [Zn(en)Cl2]

  2. B

    [Pt(en)Cl2]

  3. C

    [Cr(en)2(ox)]+

  4. D

    [Pt(en)2Cl2]2+

Solution

Cis-trans isomerism is possible with [Pt(en)2Cl2]2+. [Cr(en)2Ox]+ shows optical isomerism but not geometrical isomerism. The other two complexes, i.e. [Pt(en)Cl2] and [Zn(en)Cl2] do not show stereoisomerism.

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