question_answer

The species that can have a trans-isomer is :

(en = ethane

1, 2

diamine, ox = oxalate)

[JEE Main 10-4-2019 Morning]

A) \[[Pt(en)C{{l}_{2}}]\]                       

B) \[{{[Cr{{(en)}_{2}}(ox)]}^{+}}\]

C) \[[Zn(en)C{{l}_{2}}]\]                      

D) \[{{[Pt{{(en)}_{2}}C{{l}_{2}}]}^{2+}}\]

Correct Answer: D

Solution :

[a]no trans isomer possible because bidentate ligand will be co-ordinating only at \[90{}^\circ \]angle in square planar complex [b] no trans isomer possible [c] \[s{{p}^{3}}\] hybridized so no trans possible [d] trans and cis both are possible