Which complex is likely to show optical activity?

CHEMISTRY · Single correct · CBSE · Chemistry · Coordination Compounds · Coordination Compounds

Problem

Which complex is likely to show optical activity? (1) trans[Co(NH3)4Cl2]+\text{trans}[\text{Co}(\text{NH}_3)_4\text{Cl}_2]^+ (2) [Cr(H2O)6]3+[\text{Cr}(\text{H}_2\text{O})_6]^{3+} (3) cis[Co(NH3)2(en)2]\text{cis}[\text{Co}(\text{NH}_3)_2(\text{en})_2] (4) trans[Co(NH3)2(en)2]3+\text{trans}[\text{Co}(\text{NH}_3)_2(\text{en})_2]^{3+}

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