MCQ
Above conversion can be achieved by
  • A
    Wolf-Kishner reduction.
  • Clemmensen reduction
  • C
    $LiAlH_4$
  • D
    $NaBH_4$

Answer

Correct option: B.
Clemmensen reduction
b
$(b)$ Quaternary ammonium ion shown below would undergo a Hoffmann  elimination reaction under the basic conditions required for the Wolff-Kishner  reduction, but it would be inert to the conditions of the Clemmensen reduction. 

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

Compound $PdCl_4 .6H_2O$ is a hydrated complex; $1\, molal$ aqueous solution of it has freezing point $269.28\, K$. Assuming $100\%$ ionization of complex, calculate the molecular formula of the complex ($K_f$ for water $= 1.86\, K\, kg\, mol^{-1}$)
An endothermic reaction $A \to B$ has an activation energy $15\,\,k\,cal/mole$ and energy of reaction $5\,\,k\,cal/mole$. The activation energy of the reaction $B \to A$ is  .........$k\,cal/mole$
Which of the following aqueous solution should have the highest osmotic pressure ?
Which amino acid in present only in bacteria and cyanobacteria?
Given below are certain cations. Using inorganic qualitative analysis, arrange them in increasing group number from 0 to $\mathrm{VI}$.

$A$. $Al^{3+}$  $B$. $Cu^{2+}$  $C$. $Ba^{2+}$    $D$. $Co^{2+}$  $E$. $Mg^{2+}$

Choose the correct answer from the options given below.

Compare the  $'x'$  and  $'y'$ bond lengths

$\begin{array}{*{20}{c}}
  {{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} O\,\,\,\,\,\,{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} O{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} } \\ 
  {{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} ||{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} \,\,\,\,\,\,\,\,{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} ||{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} } \\ 
  {H - O - S\mathop {{\text{ }} - }\limits^x {\mkern 1mu} S - O - H} 
\end{array}$

 $\begin{array}{*{20}{c}}
  {\begin{array}{*{20}{c}}
  {\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,O\,\,\,\,\,\,\,\,\,O\,\,\,\,\,} \\ 
  {\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,||\,\,\,\,\,\,\,\,\,\,||} 
\end{array}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\ 
  {HO - S\mathop - \limits^y S - OH} \\ 
  {\,\,\,\,\,||\,\,\,\,\,\,\,\,\,\,\,\,\,} \\ 
  {\,\,\,\,\,O\,\,\,\,\,\,\,\,\,\,\,} 
\end{array}$

(figure) $\xrightarrow[{EtOH}]{{KOH}}X,X$ is
Which of the following is an example of pseudo unimolecular reaction
$S{O_2}$ acts as temporary bleaching agent but $C{l_2}$ acts as permanent bleaching agent. Why
$\left[ Cr \left( H _2 O \right)_6\right] Cl _3$ has a magnetic moment of $3.83 B, M$. The correct distribution of 3 d electrons in the Cr of the complex is :