English
Karnataka Board PUCPUC Science 2nd PUC Class 12

Name the factors responsible for the solubility of alcohols in water.

Advertisements
Advertisements

Question

Name the factors responsible for the solubility of alcohols in water.

Short/Brief Note
Advertisements

Solution

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.

shaalaa.com
  Is there an error in this question or solution?
Chapter 11: Alcohols, Phenols and Ethers - Multiple Choice Questions (Type - I) [Page 159]

APPEARS IN

NCERT Exemplar Chemistry Exemplar [English] Class 12
Chapter 11 Alcohols, Phenols and Ethers
Multiple Choice Questions (Type - I) | Q 25 | Page 159

RELATED QUESTIONS

Give the equation of the following reaction:

Oxidation of propan-1-ol with alkaline KMnO4 solution.


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 carboxylic acid.


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:

\[\begin{array}{cc}
\phantom{...................................}\ce{Br}\\
\phantom{..................................}|\\
\ce{CH3 - CH - CH - CH3 ->[HBr] CH3 - C - CH2 - CH3}\\
|\phantom{.........}|\phantom{...................................}|\phantom{...........}\\
\ce{CH3}\phantom{...}\ce{OH}\phantom{...............................}\ce{CH3}\phantom{.......}\\
\end{array}\]

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.)


Write the mechanism (using curved arrow notation) of the following reaction :


Lucas reagent is ____________.


The compound which reacts fastest with Lucas reagent at room temperature is:


In the reduction \[\ce{R - CHO + H2 -> RCH2OH}\] the catalyst used is:


Lucas test is done to differentiate between ____________.


The compound which gives the most stable carbonium ion on dehydration is:


The process of converting alkyl halides into alcohols involves ______.


Explain why nucleophilic substitution reactions are not very common in phenols.


Assertion: Bond angle in ethers is slightly less than the tetrahedral angle.

Reason: There is a repulsion between the two bulky (–R) groups.


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-catalysed dehydration of ethanol to yield ethene.


Write the mechanism of acid-catalysed dehydration of ethanol to yield ethene.


Write the mechanism of acid-catalysed dehydration of ethanol to yield ethene


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×