MCQ
Which of following does not react with $HNO_2$ ?
- A

- B

- C

- ✓






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${{C}_{2}}{{H}_{5}}O{{C}_{2}}{{H}_{5}}+4[H]\xrightarrow{\text{Red P}+\text{HI}}2X+{{H}_{2}}O,$ $X$ is
$(A)\,\, KO_2$
$(B)\,\,$ cis $-[Co(en)_2Cl_2]^+$
$(C)\,\, K_3[Co(Ox)_3]$
$(D)\,\,[CoCl_3]^{2-}$
$I = -3.04\,V$,
$II = -1.90\,V$,
$III = 0\,V$,
$IV = 1.90\,V$
[Given : $\mathrm{R}=0.083 \mathrm{~L} \mathrm{bar} \mathrm{mol}^{-1} \mathrm{~K}^{-1}$ ]
Assume complete dissociation of $\mathrm{NaCl}$