MCQ
Benzaldehyde and acetaldehyde can be differentiated by
- A$HCN$
- B$N{H_2}OH$
- C$Hydrazine$
- ✓$NaOH$ solution
✓
Answer
Correct option: D.
$NaOH$ solution
d
(d)Benzaldehyde gives cannizaro’s reaction whereas acetaldehyde gives aldol condensation.$2C{H_3}CHO\mathop {\xrightarrow{{{\text{dil}}\,NaOH}}}\limits_{} \mathop {C{H_3} - \mathop {\mathop {CH}\limits_{|\,\,\,\,\,} }\limits_{OH} - C{H_2} - CHO}\limits_{({\text{Aldol}})\,\,\,\,\,\,\,\,\,\,\,\,\,\,} $
(d)Benzaldehyde gives cannizaro’s reaction whereas acetaldehyde gives aldol condensation.$2C{H_3}CHO\mathop {\xrightarrow{{{\text{dil}}\,NaOH}}}\limits_{} \mathop {C{H_3} - \mathop {\mathop {CH}\limits_{|\,\,\,\,\,} }\limits_{OH} - C{H_2} - CHO}\limits_{({\text{Aldol}})\,\,\,\,\,\,\,\,\,\,\,\,\,\,} $
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
Which of the following does not have valence electron in $3d-$ subshell
→The product of the reaction is
Which position will be attacked most rapidly by the nitronium ion $(-NO_2)^+$ when the compound undergoes nitration with $HNO_3 /H_2SO_4$
→Nitrogen dioxide is dissolved in water to produce
Match List $I$ with List $II$
→| List $I$ Oxide | List $II$ Type of Bond |
| $A$ $N _2 O _4$ | $I$. $1 N = O$ bond |
| $B$ $NO _2$ | $II$. $1 N - O - N$ bond |
| $C$ $N _2 O _5$ | $III$. $1 N - N$ bond |
| $D$ $N _2 O$ | $IV$. $1 N = N / N \equiv N$ bond |
Choose the correct answer from the options given below:
What sequence of reagents is required to accomplish the following transformation ?
$5\,ml$ of $N\,HCl, \,\,20\,ml$ of $N/2$ ${H_2}S{O_4}$ and $30\,ml $ of $N/3\,\,HNO_3$ are mixed together and volume made to one litre. The normally of the resulting solution is
→Hybridisation involves:
In a cell, the following reactions take place
→$Fe ^{2+} \rightarrow Fe ^{3+} + e ^{-} \quad E _{ Fe ^{3+} / Fe ^{2+}}=0.77 \,V$
$2 I ^{-} \rightarrow I _{2}+2 e ^{-} \quad E _{ I _{2} / I ^{-}}^{0}=0.54 \,V$
The standard electrode potential for the spontaneous reaction in the cell is $x \times 10^{-2} \,V 298$ $K$. The value of $x$ is .... (Nearest Integer)
Which of the following is an arylalkyl amine?