Advertisements
Advertisements
प्रश्न
Name the factors responsible for the solubility of alcohols in water.
Advertisements
उत्तर
Alcohols are soluble in water because of hydrogen bonding with water molecules.
\[\begin{array}{cc}
\phantom{}\ce{R - O - H ⋅⋅⋅ O - H ⋅⋅⋅ O - H ⋅⋅⋅ }\phantom{}\\
\phantom{.......}|\phantom{..........}|\phantom{.}\\
\phantom{.......}\ce{H}\phantom{.........}\ce{R}\phantom{.}
\end{array}\]
The solubility decreases with increase in size of alkyl or aryl group.
APPEARS IN
संबंधित प्रश्न
Write the mechanism of the following reaction:
Give the equation of the following reaction:
Dilute HNO3 with phenol.
Name the reagent used in the following reaction:
Oxidation of a primary alcohol to aldehyde.
When 3-methylbutan-2-ol is treated with HBr, the following reaction takes place:
\[\begin{array}{cc}
\phantom{.......................}\ce{Br}\\
\phantom{......................}|\\
\ce{CH3 - CH - CH - CH3 ->[HBr] CH3 - C - CH2 - CH3}\\
\phantom{.}|\phantom{......}|\phantom{......................}|\phantom{........}\\
\phantom{}\ce{CH3}\phantom{...}\ce{OH}\phantom{...................}\ce{CH3}\phantom{.....}
\end{array}\]
Give a mechanism for this reaction.
(Hint: The secondary carbocation formed in step II rearranges to a more
stable tertiary carbocation by a hydride ion shift from 3rd carbon atom.)
Lucas reagent is ____________.
In the reduction \[\ce{R - CHO + H2 -> RCH2OH}\] the catalyst used is:
By which of the following methods alcohol can be prepared in excellent yield?
The process of converting alkyl halides into alcohols involves ______.
Mark the correct increasing order of reactivity of the following compounds with HBr/HCl.
| (a) |  |
| (b) |  |
| (c) |  |
Suggest a reagent for the following conversion.
Alcohols react with active metals e.g. Na, K etc. to give corresponding alkoxides. Write down the decreasing order of reactivity of sodium metal towards primary, secondary and tertiary alcohols.
Assertion: Bond angle in ethers is slightly less than the tetrahedral angle.
Reason: There is a repulsion between the two bulky (–R) groups.
The correct geometry around oxygen in CH3OCH3 is
Which of the following alcohols will not undergo oxidation?
Write the mechanism of acid dehydration of ethanol to yield ethene.
Write the mechanism of acid dehydration of ethanol to yield ethene.
Write the mechanism of acid dehydration of ethanol to yield ethene.
Write the mechanism of acid dehydration of ethanol to yield ethene.
Write the mechanism of acid dehydration of ethanol to yield ethene.
