1.

Which of the following compounds show optical isomerism ? (P) cis-[Co(NH_(3))_(4)Cl_(2)]^(+)""(Q) "trans"-[Co(en)_(2)Cl_(2)]^(+) (R ) cis-[Co(en)_(2)Cl_(2)]^(+)""(S) [Co(en)_(3)]^(3+) select the correct answer using the codes given below :

Answer»

<P>P and Q
Q and R
R and S
P, R and S

Answer :C


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