MCQ
What is ${E^o}$ for electrode represented by $Pt,\,{O_2}(1\,atm)\,/\,2{H^ + }({\mathop{\rm 1\,m}\nolimits} )$ ............. $\mathrm{V}$
- AUnpredictable
- ✓$0$
- C$0.018 $
- D$0.118$
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Statement $(I)$: A solution of $\left[\mathrm{Ni}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{2+}$ is green in colour.
Statement $(II)$: A solution of $\left[\mathrm{Ni}(\mathrm{CN})_4\right]^{2-}$ is colourless.
In the light of the above statements, choose the most appropriate answer from the options given below:

$HC \equiv CH\mathop {\xrightarrow{{{\text{1% HgS}}{{\text{O}}_{\text{4}}}}}}\limits_{20\% {H_2}S{O_4}} A\xrightarrow{{C{H_3}MgX}}B\xrightarrow{{[O]}}$