1
Question
The process of converting alkyl halides into alcohols involves ________.
The process of converting alkyl halides into alcohols involves ________.
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Solution
The correct option is A substitution reaction
Analyzing the reaction of the formation of alcohols from alkyl halides.
RXNaOH−−−−→ROH+NaX
CH3CL+aq.KOH→CH3OH+KCl
In this example −Cl is substituted by −OH. So, we can say that the process of converting alkyl halides into alcohols involves nucleophilic substitution reaction.
Analyzing other options
(A) Addition reaction: In these reactions, generally a reagent is added to a double or triple bond and addition product is formed.
(B) Substitution reaction:
A substitution reaction is that which involves the direct replacement of an atom or a group of atoms in an organic molecule by another atom or group of atoms without any change in the remaining part of the molecule.
CH3CH3Cl2/UV light or heat−−−−−−−−−−−−→CH3CH2Cl
(C) Dehydrohalogenation reaction:
In dehydrohalogenation of alkyl halides (β -elimination reaction), a hydrogen and a halide is lost from an alkyl halide (RX). Dehydrohalogenation is normally accomplished by reacting the alkyl halide with a strong base:
CH3CH2Cl+KOH→H2C=CH2+KCl+H2O
(D) Rearrangement reaction:
A rearrangement reaction is a class of organic reactions in which generally an atom or a group of atoms migrates from one atom to another atom in the same species.
NH4CNO NH2(CO)NH2
Ammonium cyanate Urea
Analyzing the reaction of the formation of alcohols from alkyl halides.
RXNaOH−−−−→ROH+NaX
CH3CL+aq.KOH→CH3OH+KCl
In this example −Cl is substituted by −OH. So, we can say that the process of converting alkyl halides into alcohols involves nucleophilic substitution reaction.
Analyzing other options
(A) Addition reaction: In these reactions, generally a reagent is added to a double or triple bond and addition product is formed.
(B) Substitution reaction:
A substitution reaction is that which involves the direct replacement of an atom or a group of atoms in an organic molecule by another atom or group of atoms without any change in the remaining part of the molecule.
CH3CH3Cl2/UV light or heat−−−−−−−−−−−−→CH3CH2Cl
(C) Dehydrohalogenation reaction:
In dehydrohalogenation of alkyl halides (β -elimination reaction), a hydrogen and a halide is lost from an alkyl halide (RX). Dehydrohalogenation is normally accomplished by reacting the alkyl halide with a strong base:
CH3CH2Cl+KOH→H2C=CH2+KCl+H2O
(D) Rearrangement reaction:
A rearrangement reaction is a class of organic reactions in which generally an atom or a group of atoms migrates from one atom to another atom in the same species.
NH4CNO NH2(CO)NH2
Ammonium cyanate Urea
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