MCQ
Which is most reactive metal
- ✓$Fe$
- B$Pt$
- C$Ni$
- D$Co$
$Fe\,\xrightarrow[{H_2}O/{H^ + }]{air} \mathop {}\limits_{} \, \mathop {F{e_2}{O_3}.x\,{H_2}O}\limits_{{\rm{Rust}}} $
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$2 \mathrm{H}_{(\mathrm{aq})}^{+}+2 \mathrm{e}^{-} \rightarrow \mathrm{H}_2(\mathrm{~g})$
${\left[\mathrm{H}^{+}\right]=1 \mathrm{M}, \mathrm{P}_{\mathrm{H}_2}=2 \mathrm{~atm}}$
(Given: $2.303 \mathrm{RT} / \mathrm{F}=0.06 \mathrm{~V}, \log 2=0.3$ )
$(I)$ $C_6H_5-CH-Br$
$(II)$ $\begin{array}{*{20}{c}}
{{C_6}{H_5} - CH - {C_2}{H_5}} \\
{|\,\,\,} \\
{Br}
\end{array}$