Advertisements
Advertisements
प्रश्न
Arrange water, ethanol and phenol in increasing order of acidity and give reason for your answer.
Advertisements
उत्तर
The increasing order of acidity is ethanol < water < phenol. The phenoxide ion obtained after the removal of a proton is stabilised by resonance whereas the ethoxide ion obtained after the removal of a proton is destabilised by the ‘+I’ effect of the —C2H5 group. Therefore phenol is a stronger acid than ethanol. On the other hand, ethanol is a weaker acid than water because the electron-releasing —C2H5 group in ethanol increases the electron density on oxygen and hence the polarity of the O—H bond in ethanol decreases which results in the decreasing acidic strength. Hence acidic strength increases in the order given above.
APPEARS IN
संबंधित प्रश्न
How do you convert the following:
Ethanol to Propan-2-ol
Methanol and ethanol are miscible in water due to ____________.
Which of the following is correct?
Wood spirit is known as acetone:
Write the IUPAC name of the following compound.
\[\begin{array}{cc}
\phantom{.}\ce{CH3 - CH - CH - CH - CH - CH3}\phantom{}\\
\phantom{......}|\phantom{......}|\phantom{......}|\phantom{.....}|\phantom{........}\\
\phantom{...}\ce{CH3}\phantom{...}\ce{OH}\phantom{...}\ce{C2H5}\phantom{.}\ce{OH}\phantom{...}\end{array}\]
What is denatured alcohol?
Out of 2-chloroethanol and ethanol which is more acidic and why?
Name the enzymes and write the reactions involved in the preparation of ethanol from sucrose by fermentation.
Dipole moment of phenol is smaller than that of methanol. Why?
The carbon-oxygen bond in phenol is slightly stronger than that in methanol. Why?
Liquor poisoning is due to
If the starting material is 1-methyl-1,2-epoxy cyclopentane, of absolute configuration, decide which one compound correctly represents the product of its reaction with sodium methoxide in methanol.
Convert the following Ethanal to ethanol.
How methanol is obtained from methanal.
Give IUPAC names of the following compounds:
\[\begin{array}{cc}
\ce{CH3 - CH - CH - CH - CH2-OH }\\
|\phantom{......}|\phantom{......}|\phantom{.......}\\
\ce{Cl}\phantom{....}\ce{CH3}\phantom{...}\ce{CH3}\phantom{.....}
\end{array}\]
3, 3-dimethyl-1-butene was subject to following reactions:
