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प्रश्न
Which of the compounds will react faster in SN1 reaction with the –OH ion?
\[\ce{CH3-CH2-Cl}\] or \[\ce{C6H5-CH2-Cl}\]
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उत्तर
\[\ce{C6H5-CH2-Cl}\]
SN1 reaction proceeds through the formation of carbonation intermediate.
\[\ce{C6H5CH2Cl}\] readily undergoes ionization to give \[\ce{C6H5CH^{+}2}\] carbocation, which is stabilized by resonance.
On the other hand, \[\ce{CH3CH2Cl}\] does not undergo ionization to give \[\ce{CH3CH^{+}2}\] carbonation. Therefore, \[\ce{C6H5CH2Cl}\] reacts faster than \[\ce{CH3CH2Cl}\] with \[\ce{OH-}\] ion.
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संबंधित प्रश्न
Discuss the mechanism of alkaline hydrolysis of bromomethane.
Given reasons: C–Cl bond length in chlorobenzene is shorter than C–Cl bond length in CH3–Cl.
Write the structure of the major product in each of the following reaction :
Write the structure of the major organic product in the following reaction:
\[\ce{CH3CH(Br)CH2CH3 + NaOH ->[water]}\]
Write the structure of the major organic product in the following reaction:
\[\ce{CH3CH2CH2OH + SOCl2 ->}\]
What is the action of the following on ethyl bromide?
moist silver oxide
Halogenation of alkanes is ____________.
Which one of the following halogen compounds is difficult to be hydrolysed by SN1 mechanism?
Tertiary alkyl halides are practically inert to substitution by SN2 mechanism because of ____________.
Which of the following compounds is optically active?
Which of the following compounds will give a racemic mixture on nucleophilic substitution by OH ion?
1-Bromoethane, 1-Bromopropane, 1-Bromobutane, Bromobenzene
Which reagent will you use for the following reaction?
\[\ce{CH3CH2CH2CH3 -> CH3CH2CH2CH2Cl + CH3CH2CHClCH3}\]
Which of the following statements are correct about this reaction?
(i) The given reaction follows SN2 mechanism.
(ii) (b) and (d) have opposite configuration.
(iii) (b) and (d) have same configuration.
(iv) The given reaction follows SN1 mechanism.
Give reason for the following:
The product formed during SN1 reaction is a racemic mixture.
Racemisation occurs in ______.
Discuss SN2 mechanism of methyl bromide using aqueous KOH.
Discuss the mechanism of alkaline hydrolysis of methyl bromide.
Which of the following reactions is an example of nucleophilic substitution reaction?
Assertion (A): 
undergoes SN2 reactions faster than 
.
Reason (R): Iodine is a better leaving group because of its large size.
In the light of the above statements, choose the correct answer from the options given below:
