MCQ
Proteins are composed of
- ✓$\alpha - $amino acids
- BCarbohydrates
- CVitamins
- DMineral salts
${H_2}N - C{H_2}COOH + {H_2}N - C{H_2} - COOH$ $\xrightarrow{{ - {H_2}O}}\,{H_2}N - C{H_2}\mathop { - CONH - }\limits_{{\text{peptide bond}}} C{H_2}COOH$ $\xrightarrow{{{H_2}N - C{H_2}COOH}}$ Even further
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$R - Br + C{l^ - }\xrightarrow{{DMF}}R - Cl + B{r^ - }$ ,
which one of the following undergoes complete inversion of configuration?
$\begin{array}{*{20}{c}}
{C{H_3}}\\
{|\,\,\,\,\,}\\
{{C_6}{H_5}C{H_2} - C - C{H_2} - C{H_3}}\\
{|\,\,\,\,\,}\\
{Br\,\,\,}
\end{array}$ $\xrightarrow[{{C_2}{H_5}OH}]{{{C_2}{H_5}ONa}}$