MCQ
The reaction is called $\begin{array}{*{20}{c}}
  {2C{H_3} - C - O{C_2}{H_5}} \\ 
  {||\,\,\,} \\ 
  {O\,\,\,} 
\end{array}$ ${\xrightarrow{{{C_2}{H_5}ONa}}}$  $\begin{array}{*{20}{c}}
  {C{H_3} - C - C{H_2} - C - O{C_2}{H_5}} \\ 
  {||\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,||\,\,\,\,\,\,\,} \\ 
  {O\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,O\,\,\,\,\,} 
\end{array}$ $ + \,{C_2}{H_5}OH$
  • A
    Etard reaction
  • B
    Perkin’s reaction
  • Claisen condensation
  • D
    Claisen Schmidt reaction

Answer

Correct option: C.
Claisen condensation
c

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Similar questions

Given below are two statements: one is labelled as Assertion $(A)$ and the other is labelled as Reason $(R)$ :

Assertion $(A)$ : $\mathrm{S}_{\mathrm{N}} 2$ reaction of $\mathrm{C}_6 \mathrm{H}_5 \mathrm{CH}_2 \mathrm{Br}$ occurs more readily than the $\mathrm{S}_{\mathrm{N}} 2$ reaction of $\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{Br}$.

Reason $(R)$ : The partially bonded unhybridized p-orbital that develops in the trigonal bipyramidal transition state is stabilized by conjugation with the phenyl ring.

In the light of the above statements, choose the most appropriate answer from the options given below:

Which of the following statements is correct ?
Benzene diazonium chloride on boiling with dilute sulphuric acid gives
When ammonium dichromate is heated, the gas formed is
What is the product of the following reaction ?
Which reagents can be used to distinguish glucose and fructose ?

$(I)$ Bromine water

$(II)$ Tollen's reagents

$(III)$ Shiff's reagent

The number of paramagnetic species from the following is $............$.

${\left[ Ni ( CN )_4\right]^{2-},\left[ Ni ( CO )_4\right],\left[ NiCl _4\right]^{2-}}$

${\left[ Fe ( CN )_6\right]^{4-},\left[ Cu \left( NH _3\right)_4\right]^{2+}}$

${\left[ Fe ( CN )_6\right]^{3-} \text { and }\left[ Fe \left( H_2O\right)_6\right]^{2+}}$

The major product '$B$' is

$\begin{array}{*{20}{c}}
{\,\,\,\,\,\,\,\,\,\,\,C{H_3}}\\
{\,\,\,|\,\,}\\
{C{H_3} - C{H_2} - CH - C - N{H_2}}\\
{\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,||}\\
{\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,O\,\,\,}
\end{array}$ $\xrightarrow[\Delta ]{{B{r_2}/KOH}}\left( A \right)\xrightarrow{\begin{subarray}{l} 
  (1)\,\,C{H_3}I\,{\text{(excess)}} \\ 
  (2)\,AgOH/\Delta \, 
\end{subarray} }$ $(B)$

Phenol on reaction with NH3​ gives:
Orthophosphoric acid represents the molaysis condition due to