MCQ
Which one does not give cannizzaro's reaction
- ABenzaldehyde
- ✓$2-$methyl propanal
- C$p-$methoxy benzaldehyde
- D$2,2$ dimethyl propanal
✓
Answer
Correct option: B.
$2-$methyl propanal
b
(b) Aldehyde, which does not have the $\alpha - H$ atom, gives cannizzaro's reaction on heating with conc. alkali solution $(50\%)$
(b) Aldehyde, which does not have the $\alpha - H$ atom, gives cannizzaro's reaction on heating with conc. alkali solution $(50\%)$
$\mathop {{C_6}{H_5}CHO}\limits_{\alpha - H{\text{ atom absent}}} $
$\mathop {\begin{array}{*{20}{c}}
{\,\,\,\,\,C{H_3}} \\
{\alpha |\,\,\,\,\,\,} \\
{C{H_3} - CHCHO}
\end{array}}\limits_{\alpha \, - \,H\, - \,atom} $
$\mathop {\begin{array}{*{20}{c}}
{\begin{array}{*{20}{c}}
\,\,\,\,\,{C{H_3}} \\
\,\,\,\,\,{|\,\,\,\,\,\,\,}
\end{array}} \\
{C{H_3} - C - CHO} \\
\,\,\,\,{|\,\,\,\,\,\,\,} \\
\,\,\,\, \,\, {C{H_3}\,\,}
\end{array}}\limits_{\alpha - H{\text{ - atom absent}}} $
$\mathop {HCHO}\limits_{\alpha - H - {\text{atom absent}}} $
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
$\xrightarrow[{B{r_2}}]{{O\mathop H\limits^ \ominus }} \, ;$ Intermediate of the given reaction is/are
→Concentrated nitric acid, upon long standing, turns yellow-brown due to the formation of
Product $(B)$ of the reaction is
→The IUPAC name of 
Crystals of which pair are isomorphous
Which one among the following is the strongest reducing agent
→$F{e^{2 + }} + 2{e^ - } \to Fe( - 0.44\,V)$
$N{i^{2 + }} + 2{e^ - } \to Ni( - 0.25\,V)$
$S{n^{2 + }} + 2{e^ - } \to Sn( - 0.14V)$
$F{e^{3 + }} + {e^ - } \to F{e^{2 + }}( - 0.77\,V)$
The correct sequence of bond enthalpy of $'\mathrm{C}-\mathrm{X}'$ bond is :
→$0.5\,M$ of ${H_2}S{O_4}$ is diluted from $1\,litre$ to $10\,litre$, normality of resulting solution is ......... $N$.
→Laughing gas is prepared by heating
Which of the following has highest $pK_a$ value
→