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
Polarisation of electrons in acroline may be written as
  • A
    $CH_2^{\delta - } = CH - C{H^{\delta + }} = O$
  • B
    $CH_2^{\delta - } = CH - CH = {O^{\delta + }}$
  • C
    $CH_2^{\delta - } = C{H^{\delta + }} - CH = O$
  • ✓
    $CH_2^{\delta + } = CH - CH = {O^{\delta - }}$
✓

Answer

Correct option: D.
$CH_2^{\delta + } = CH - CH = {O^{\delta - }}$
d
Polarisation of electrons in acrolein may be written as $\stackrel{+\delta}{CH _2}= CH - CH =\stackrel{-\delta}{ O }$.

$O$ atom is more EN than $C$ atom, so it acquires $(-\delta)$ charge and $C$ atom acquires $(+\delta)$ charge which is transferred to the last $C$ atom.

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

Which of the following is correct structure of $L$ -glucose ?
→
Which of the following species can act as reducing agent ?
→
Which of the following has largest bond angle ?
→
The number of given orbitals which have electron density along the axis is $..........$. $p _{ x }, p _{ y }, p _{ z }, d _{ xy }, d _{ yz }, d _{ xz }, d _z ^2, d _{ x ^2- y ^2}$
→
The electronic configuration together with the quantum number of last electron for lithium is
→
A buffer solution with $pH$$=9$ is to be prepared by mixing $N{H_4}Cl$ and $N{H_4}OH$. Calculate the number of moles of $N{H_4}Cl$ that should be added to one litre of $1.0\,M\;N{H_4}OH.\,$ $[{K_b} = 1.8 \times {10^{ - 5}}]$
→
The most important method of preparation of hydrocarbons of lower carbon number is
→
Which one of the following is a bronsted acid but not a bronsted base ?
→
Which of the following process is non spontaneous
→
The degree of hydrolysis of a salt of weak acid and weak base in its $0.1 \,M$  solution is found to be $ 50\%.$  If the molarity of the solution is $ 0.2\, M$ , the percentage hydrolysis of the salt should be......$\%$
→