MCQ
Which of the following compound show optical isomerism?
- Acis $-[CrCl_3 (NHI_3)_3]$
- ✓$[Co(en)_3]^{3+}$
- Ccis $- [Co(NH_3)_4Cl_2]^+$
- Dtrans $-[Co(en)_2 Cl_2]^+$

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$Zn\,(s)\,\, + \,\,C{u^{2 + }}\,(aq)\, \rightleftharpoons \,Z{n^{2 + \,}}\,(aq)\, + Cu\,(s)$
At $300\,K$ is approximately $(R = 8 \,JK^{-1}\,mol^{-1},\, F = 96000\,C\,mol^{-1})$
