MCQ
$C + D$ The product $(C)$ and $(D)$ are


- AAcetone $+$ Ethanal
- ✓Acetone $+$ Ehtanoic acid
- CIsobutanal $+$ Methanal
- DIsobutanoic acid $+$ Methanoic acid

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$\begin{array}{*{20}{c}}
O \\
{||} \\
{C{H_3} - C - N{H_2}}
\end{array}$ $\xrightarrow{{KOBr}}$ $(A)$
$\begin{array}{*{20}{c}}
O \\
{||} \\
{C{H_3} - C - N{H_2}}
\end{array}$ $\xrightarrow{{LiAlH_4}}$ $(B)$

Calculate $\Delta {T_b}$ if ${K_f} = 1.86$ and ${K_b} = 0.521$.