MCQ
$2-$ pentanone can be distinguished from $3-$ pentanone by the reagent
  • A
    $2, 4-$ dinitrophenyl hydrazine
  • B
    Tollens reagent
  •  $I_2$ and dil. $NaOH$
  • D
    $NaHSO_3$

Answer

Correct option: C.
 $I_2$ and dil. $NaOH$
c
$2-$ Pentanone gives yellow ppt of Iodoform with $I_2 + NaOH$

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

Which one of the following has the maximum number of unpaired electrons
The number of incorrect statement/s from the following is

$A$. The successive half lives of zero order reactions decreases with time.

$B$. A substance appearing as reactant in the chemical equation may not affect the rate of reaction

$C$. Order and molecularity of a chemical reaction can be a fractional number

$D$. The rate constant units of zero and second order reaction are $mol\, L ^{-1} s ^{-1}$ and $mol ^{-1} Ls ^{-1}$ respectively

When $2\,L$ of $CO_2$ is heated with graphite, volume of gases collected is $3\,L$, calculate number of moles of $CO$ produced at $STP$?
If $k$ is rate constant and $t$ is time then the degree of dissociation for a substance undergoing decay with first order kinetics is
In which of the following species ,addition of $H^+$ will be faster in comparisson to other three species ?
An acyl halide is formed when $PC{l_5}$ reacts with an
The given reaction

$\begin{array}{*{20}{c}}
  \,\,\,{{C_2}{H_5}} \\ 
  {|\,\,\,\,\,\,\,} \\ 
  {C{H_3} - C - COOH} \\ 
  {|\,\,\,\,\,\,} \\ 
  \,\,\,{{C_3}{H_7}} 
\end{array}\xrightarrow{{{N_3}H/Conc.\,{H_2}S{O_4}}}\begin{array}{*{20}{c}}
 \,\,\,\,\,\,\,\,\,{{C_2}{H_5}} \\ 
  | \\ 
  {C{H_3} - C - N{H_2}} \\ 
  | \\ 
  \,\,\,\,\,\,\,\,\,{{C_3}{H_7}} 
\end{array}$

is called :

Electrolytic reduction of alumina to aluminium by Hall-Heroult process is carried out in the presence of
Which is incorrect from the following ?
Rank the following species in order of decreasing nucleophilicity in a polar protic  solvent (most $\to$ least nucleophilic)

$\underset{(1)}{\mathop{C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}{{O}^{-}}}}\,\,\,\,\,\,\underset{(2)}{\mathop{C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}{{S}^{-}}}}\,\,\,\,\underset{(3)}{\mathop{\begin{matrix}
   \,\,\,\,\,\,\,O  \\
   \,\,\,\,\,\,\,\,||  \\
   C{{H}_{3}}C{{H}_{2}}C-{{O}^{-}}  \\
\end{matrix}}}\,$