MCQ
Which of the following is Sanger reagent ?
- ✓$2,4$ -Di- nitro flurobenzene
- BPhenyl isocyanate
- C$2, 4$ -Di- nitro chlorobenzene
- D$2, 4$ -Di- nitro iodoberizene
Sanger's reagent: A) $2,4-Dinitroflurobenzene$ structure:
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$STATEMENT$-$2$: $o$-Hydroxybenzoic acid has intramolecular hydrogen bonding.
$Cu^{2+}_{(aq)} + e^-\to Cu^+_{(aq)}$ and
$Cu^+_{(aq)} + e^-\to Cu_{(s)}$
are $+0.15\,V$ and $+0.50\,V$ respectively. The value of $E^o_{Cu^{2+}/Cu}$ will be ............ $\mathrm{V}$
$(I)$ $RCOCl$
$(II)$ $RCOOR$
$(III)$ $RCON{H_2}$
$(IV)$ ${(RCO)_2}O$
The product $"A"$ and $"B"$ formed in above reactions are