Download App

7. Alcohol, phenol and ethers — Chemistry STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 ScienceChemistry7. Alcohol, phenol and ethers1 Mark
MCQ
The major reason that phenol is a better Bronsted acid than cyclohexanol is that
  • A
    it is a better proton donor.
  • B
    the cyclohexyl group is an electron donating group by induction, which  destabilizes the anion formed in the reaction by resonance.
  • C
    phenol is able to stabilize the anion formed in the reaction.
  • ✓
    the phenyl group is an electron withdrawing group by induction , which stabilizes  the anion formed in the reaction.
✓

Answer

Correct option: D.
the phenyl group is an electron withdrawing group by induction , which stabilizes  the anion formed in the reaction.
d
$(d)$

Phenyl group attached to oxygen is an electron withdrawing group because of electronegativity of double-bond [negative Inductive effect].The compound is stabilized by Induction when anion is formed in reaction.

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

More "M.C.Q (1 Marks)" from 7. Alcohol, phenol and ethers→7. Alcohol, phenol and ethers — all question types→Chemistry STD 12 Science question papers→CBSE Board STD 12 Science question papers→CBSE Board question paper generator→

Similar questions

The stability of $Cu ^{2+}$ is more than $Cu ^{+}$salts in aqueous solution due to -
→
How many kinds of space lattices are possible in a crystal?
→
A reaction that is of the first order with respect to reactant $A$ has a rate constant $6\,{\min ^{ - 1}}.$ If we start with $[A] = 0.5\,mol\,\,{l^{ - 1}}$, when would $[A]$ reach the value $ 0.05\,mol$ ${l^{ - 1}}$ ...... $\min$
→
In this process product  $A $ is
→
The ratio of sigma and $\pi$ bonds present in pyrophosphoric acid is  $......$.
→
The reaction $A\xrightarrow{k}$ Producl, is zero order while the reaction $B\xrightarrow{k}$ Product, is first order reaction. For what initial concentration of $A$ are the half lives of two reactions equal ?
→
Consider the following reaction. On estimation of bromine in $1.00 g$ of $R$ using Carius method, the amount of $AgBr$ formed (in $g$ ) is. . . .

$\overline{\text { [Given : }}$ Atomic mass of $H =1, C =12, O =16, P =31, Br =80, Ag =108]$

→
Among the following molecule

$(i)$ $Xe{O_3}$ $(ii)$ $XeO{F_4}$ $(iii)$ $Xe{F_6}$

Those having same number of lone pairs on Xe are

→
Which of the following gas is/are called rare gas
→
The molal elevation constant is the ratio of the elevation in B.P. to
→