Answer
Verified
459.9k+ views
Hint:
Both chlorobenzene and benzyl chloride are organic aromatic compounds and both have a benzene ring. The only difference is that there is one chlorine atom present in chlorobenzene and in benzyl chloride a $C{{H}_{2}}Cl$group is present. The less stable compound among the two will undergo hydrolysis readily.
Complete step by step answer:
As we know the structure benzyl chloride and chlorobenzene is-
As we can see from their structures, the chlorine atom is directly attached to the benzene ring in chlorobenzene and the carbon-chlorine bond is very stable. Therefore, chlorobenzene has a more stable initial structure compared to benzyl chloride.
Also, due to the presence of the lone pairs on the chlorine atom, it will undergo resonance with the benzene ring to gain extra stability. The resonance structures are-
Due to these stability factors, chlorobenzene will not get hydrolysed.
Also, due to the fact that chlorine is highly electronegative and carbon- chlorine bond is extremely strong, it will require a very high energy for the Carbon-chlorine bond to break.
Also, phenol is an electron withdrawing group whereas chlorine is electronegative.
Therefore, it will not undergo substitution to get hydrolysed by NaOH.
However, in the case of benzyl chloride, as we know it can form a stable intermediate benzyl carbocation, it will have the opportunity to get hydrolysed. The carbocation formed is resonance stabilized-
Benzyl chloride undergoes bimolecular nucleophilic substitution,$S{{N}{2}}$ with the formation of a stable transition state and gets hydrolysed forming benzyl alcohol as shown below-
Additional Information:
$S{{N}{2}}$ is a substitution reaction which moves forward via a transition state. Breaking of the leaving group bond and formation of the attacking group bond takes place simultaneously in a single step.
Note:
It is important to remember here that chlorobenzene also undergoes resonance but a stable carbocation is not formed there which is required for the hydrolysis by removal of chlorine and addition of hydroxyl group. Benzyl chloride forms a stable transition state enabling the $S{{N}{2}}$ pathway for hydrolysis forming benzyl alcohol.
Both chlorobenzene and benzyl chloride are organic aromatic compounds and both have a benzene ring. The only difference is that there is one chlorine atom present in chlorobenzene and in benzyl chloride a $C{{H}_{2}}Cl$group is present. The less stable compound among the two will undergo hydrolysis readily.
Complete step by step answer:
As we know the structure benzyl chloride and chlorobenzene is-
As we can see from their structures, the chlorine atom is directly attached to the benzene ring in chlorobenzene and the carbon-chlorine bond is very stable. Therefore, chlorobenzene has a more stable initial structure compared to benzyl chloride.
Also, due to the presence of the lone pairs on the chlorine atom, it will undergo resonance with the benzene ring to gain extra stability. The resonance structures are-
Due to these stability factors, chlorobenzene will not get hydrolysed.
Also, due to the fact that chlorine is highly electronegative and carbon- chlorine bond is extremely strong, it will require a very high energy for the Carbon-chlorine bond to break.
Also, phenol is an electron withdrawing group whereas chlorine is electronegative.
Therefore, it will not undergo substitution to get hydrolysed by NaOH.
However, in the case of benzyl chloride, as we know it can form a stable intermediate benzyl carbocation, it will have the opportunity to get hydrolysed. The carbocation formed is resonance stabilized-
Benzyl chloride undergoes bimolecular nucleophilic substitution,$S{{N}{2}}$ with the formation of a stable transition state and gets hydrolysed forming benzyl alcohol as shown below-
Additional Information:
$S{{N}{2}}$ is a substitution reaction which moves forward via a transition state. Breaking of the leaving group bond and formation of the attacking group bond takes place simultaneously in a single step.
Note:
It is important to remember here that chlorobenzene also undergoes resonance but a stable carbocation is not formed there which is required for the hydrolysis by removal of chlorine and addition of hydroxyl group. Benzyl chloride forms a stable transition state enabling the $S{{N}{2}}$ pathway for hydrolysis forming benzyl alcohol.
Recently Updated Pages
what is the correct chronological order of the following class 10 social science CBSE
Which of the following was not the actual cause for class 10 social science CBSE
Which of the following statements is not correct A class 10 social science CBSE
Which of the following leaders was not present in the class 10 social science CBSE
Garampani Sanctuary is located at A Diphu Assam B Gangtok class 10 social science CBSE
Which one of the following places is not covered by class 10 social science CBSE
Trending doubts
Derive an expression for drift velocity of free electrons class 12 physics CBSE
Which are the Top 10 Largest Countries of the World?
Write down 5 differences between Ntype and Ptype s class 11 physics CBSE
The energy of a charged conductor is given by the expression class 12 physics CBSE
Fill the blanks with the suitable prepositions 1 The class 9 english CBSE
Derive an expression for electric field intensity due class 12 physics CBSE
How do you graph the function fx 4x class 9 maths CBSE
The Equation xxx + 2 is Satisfied when x is Equal to Class 10 Maths
Derive an expression for electric potential at point class 12 physics CBSE