MCQ
An unknown compound ‘$D’,$ first oxidised to aldehyde and then acitic acid by a dilute solution of${K_2}C{r_2}{O_7}$ and ${H_2}S{O_4}$. The unknown compound $‘D$’ is
- A$C{H_3}CHO$
- B$C{H_2}C{H_3}OH$
- ✓$C{H_3}C{H_2}OH$
- D$C{H_3}C{H_2}C{H_3}$
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Reason : Zinc has a more negative electrode potential than iron.
$\operatorname{P} t|{H_{{2_{\left( {2\,atm} \right)}}}}|H_{\left( {0.002\,M} \right)}^ \oplus ||H_{\left( {0.1\,M} \right)}^ \oplus |{H_{{2_{\left( {1\,atm} \right)}}}}|Pt$