MCQ
The reaction in which sodium cyanide is used
- APerkin reaction
- BReimer-Tiemann reaction
- ✓Benzoin condensation
- DRosenmund reaction
✓
Answer
Correct option: C.
Benzoin condensation
c
(c)${C_6}{H_5} - \mathop {\mathop C\limits^{||} }\limits^O - H + H - \mathop {\mathop C\limits^{||} }\limits^O - {C_6}{H_5}\mathop {\xrightarrow{{{\text{alc}}\,NaCN}}}\limits_{} $ $\mathop {{C_6}{H_5} - \mathop {\mathop {CH}\limits^{|\,\,\,\,\,} }\limits^{OH} - \mathop {\mathop C\limits^{||} }\limits^O - {C_6}{H_5}}\limits_{{\text{Benzoin}}} $
(c)${C_6}{H_5} - \mathop {\mathop C\limits^{||} }\limits^O - H + H - \mathop {\mathop C\limits^{||} }\limits^O - {C_6}{H_5}\mathop {\xrightarrow{{{\text{alc}}\,NaCN}}}\limits_{} $ $\mathop {{C_6}{H_5} - \mathop {\mathop {CH}\limits^{|\,\,\,\,\,} }\limits^{OH} - \mathop {\mathop C\limits^{||} }\limits^O - {C_6}{H_5}}\limits_{{\text{Benzoin}}} $
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
Molar conductance ${\Lambda _m}$ is plotted against $\sqrt c $ $(mol\, litre^{-1}$) for three electrolytes $(NaCl, HCl, NH_4OH)$ Which of the following is correct ?
→$1-2-3$
In the following reaction, $X$ is..
→$X\xrightarrow{{{\text{Bromination}}}}Y\xrightarrow{{NaN{O_2} + HCl}}Z\mathop {\xrightarrow{{{\text{Boiling}}}}}\limits_{{C_2}{H_5}OH} {\text{Tribromobenzene}}$
Which of the following protein destroys the antigen when it enters in body cell
A pink colored salt on dry heating becomes blue in colour. Salt may contain
$C{r_2}O_7^{2 - } + {I^ - } \to {I_2} + C{r^{3 + }}$
→${E^0}_{cell} = 0.79\;V$
$E_{C{r_2}O_7^{2 - }}^0 = 1.33\;V,\;{E^0}_{{I_2}}$ is ........... $\mathrm{V}$
An emulsifier is a substance:
The osmotic pressure of $ 0.4\%$ urea solution is $1.66\,atm$ and. that of a solution of suger of $3.42 \%$ is $2.46\,atm$. When both the solution are mixed then the osmotic pressure of the resultant solution will be ......... $atm$.
→Benzene and toluene form nearly ideal solutions. At $20\,^o C, $ the vapour pressure of benzene is $75\,torr$ and that of toluene is $22\,torr$. The parial vapour pressure of benzene at $20\,^o C$ for a solution containing $78\, g $ of benzene and $46\,g$ of toluene in torr is
→In the isoelectronic series of metal carbonyl, the $CO$ bond strength is expected to increase in the order
→Which of the following reaction is possible at anode?