MCQ
In which reaction ethyl phenyl ketone is obtained
  • A
    $C_6H_5-C \equiv N+Et$  $MgBr$ $→ $ $A$     $\xrightarrow[{{H^ \oplus }}]{{{H_2}O}}$
  • B
    $\begin{array}{*{20}{c}}
      {C{H_3} - C{H_2} - C - Cl} \\ 
      {\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,|\,|} \\ 
      {\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,O} 
    \end{array}$ + $Ph_2.Cd$ $\rightarrow$
  • C

  • All of them

Answer

Correct option: D.
All of them
d

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

A sample of phosphorus trichloride $(PC{l_3})$ contains $1.4$ moles of the substance. How many atoms are there in the sample
Which of the following order is not correct ?
Given below are two statements:
Statement - I: High concentration of strong nucleophilic reagent with secondary alkyl halides which do not have bulky substituents will follow $S _{ N } 2$ mechanism.
Statement – II: A secondary alkyl halide when treated with a large excess of ethanol follows $S _{ N } 1$ mechanism.
In the the light of the above statements, choose the most appropriate from the questions given below: 
The number of waves made by a Bohr electron in an orbit of maximum magnetic quantum number $3$ is
The difference between $\Delta H$ and $\Delta U$ $(\Delta H - \Delta U),$ when the combustion of one mole of heptane $(I)$ is carried out a temperature $T$ is equal to
Which one of the following pairs of compounds illustrates the law of multiple proportion
The structural formula of methyl aminomethane is
The formation of the oxide ion, ${O^{2 - }}\left( g \right)$, from oxygen atom requires first an exothermic and then an endothermic step as shown below

$O\left( g \right) + {e^ - } \to O_{\left( g \right)}^ - \,\,\,\,;\,\,\,\,{\Delta _f}{H^\Theta } =  - 141\,kJ\,mo{l^{ - 1}}$

${O^ - }\left( g \right) + {e^ - } \to O_{\left( g \right)}^{2 - }\,\,\,\,;\,\,\,\,{\Delta _f}{H^\Theta } =  + 780\,kJ\,mo{l^{ - 1}}$

Thus process of formation of $O_2^-$ in gas phase is unfavourable even thought $O_2^-$ is isoelectronic with neon. It is due to the fact that,

The molar conductivity for electrolytes $A$ and $B$ are plotted against $C ^{1 / 2}$ as shown below. Electrolytes $A$ and $B$ respectively are
Image 
The structure of $X$ is :