Download App

STD 11 - 8.2 Organic chemistry isomerism — NEET STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceNEETSTD 11 - 8.2 Organic chemistry isomerism4 Marks
MCQ
How many enol form is possible for $\begin{array}{*{20}{c}}
  {O\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\ 
  {||\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\ 
  {C{H_3} - C{H_2} - C - C{H_2} - C{H_2} - C{H_3}} 
\end{array}$ (including stereoisomers) will be ?
  • A
    $2$
  • B
    $3$
  • C
    $4$
  • D
    $5$
✓

Answer

$\begin{matrix}
   \,\,\,\,\,\,OH\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,  \\
   \,|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,  \\
   C{{H}_{3}}-CH=C-C{{H}_{2}}-C{{H}_{2}}-C{{H}_{3}}  \\
\end{matrix}$ $(E\,and\,Z)$  $\begin{matrix}
   \,\,\,\,\,\,OH\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,  \\
   \,|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,  \\
   C{{H}_{3}}-CH-C=C{{H}_{2}}-C{{H}_{2}}-C{{H}_{3}}  \\
\end{matrix}$  (cis and trans)

Total $= 4$ enol fonns

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

Explore more

NEET STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

The number of nodal planes $'d'$ orbital has
→
A metal complex of coordination number six having three different types of ligands  $a, b$ and $c$ of composition $Ma_2b_2c_2$ can exist in several geometrical  isomeric forms; the total number of such isomers is
→
The $IUPAC$ name of following compound is
→
In which of the following arrangements the order is $NOT$ according to the property indicated against it ?
→
The $IUPAC$ name of $Xe[Pt F_6 ]$ is
→
$2\, mole$ of $N_2H_4$ loses $16\, mole$ of electron is being converted to a new compound $X$. Assuming that all of the $N$ appears in the new compound. What is the oxidation state of $'N'$ in $X$ ?
→
The cation that does not form an amine complex with excess of ammonia is
→
When $96500 $ coulomb of electricity is passed through a copper sulphate solution, the amount of copper deposited will be ............... $\mathrm{mol}$
→
Bleaching powder loses its power on keeping for a long time because
→
$[ X ]+ H _2 SO _4 \rightarrow[ Y ]$ a colourless gas with irritating smell
$[ Y ]+ K _2 Cr _2 O _7+ H _2 SO _4 \rightarrow$ green solution [X] and [Y] is
→