MCQ
Which complex is likely to show optical activity?
- ✓trans $-[Co(NH_3)_4 Cl_2]^+$
- B$[Cr(H_2O)_6]^{3+}$
- Ccis $- [Co(NH_3)_2 (en)_2 ]$
- Dtrans $-[Co(NH_3)_2 (en)_2]^{3+}$
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$C_2H_5-Br\overset{AgCN}{\rightarrow}A\overset{H_2/Ni}{\rightarrow}B$
Product $B$ is

$Z\xrightarrow{{PC{l_5}}}X\xrightarrow{{Alc.KOH}}Y\xrightarrow{{dil{H_2}S{O_4}}}Z$
