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प्रश्न
Out of C6H5CH2Cl and C6H5CHClC6H5, which is more easily hydrolysed by aqueous KOH.
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उत्तर
C6H5CHClC6H5 is hydrolysed faster.
- The hydrolysis of an alkyl halide is a nucleophilic substitution reaction. For aryl halides, this occurs through the SN1 method, resulting in carbocation.
- C6H5CH2Cl or benzyl chloride gives
carbocation while C6H5CHClC6H5 generates 
. - Out of I and II, carbocation II is more stable. Two attached phenyl rings on the carbon carry the positive charge.
- This leads to increased delocalisation of the positive charge and greater carbocation stability. This leads to faster formation of (II) and easier hydrolysis of the resulting halide than benzyl chloride.
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संबंधित प्रश्न
Write the structure of an isomer of compound C4H9Br which is most reactive towards SN1 reaction
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\[\ce{{n}BuBr + KCN ->[EtOH-H2O] {n}BuCN}\]
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C–Cl bond length in chlorobenzene is shorter than C–Cl bond length in CH3–Cl.
In a coordination entity of the type [PtCl2(en)2]2+ which isomer will show optical isomerism?
AgCN reacts with haloalkanes to form isocyanide. Haloalkanes react with KCN to form alkyl cyanides as the main product. Why?
Which one of the following halogen compounds is difficult to be hydrolysed by SN1 mechanism?
Racemic compound has ____________.
An organic molecule necessarily shows optical activity if it ____________.
Assertion: KCN reacts with methyl chloride to give methyl isocyanide.
Reason: CN– is an ambident nucleophile.
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\[\ce{CH3-CH2-Cl}\] or \[\ce{C6H5-CH2-Cl}\]
How do polar solvents help in the first step in SN1 mechanism?
Which one is the correct order of nucleophilic strength (pKa) of following nucleophiles?
CCl4 is insoluble in water because:-
Which of the following compounds will show retention in configuration on nucleophile substitution by OH− ion?
An organic compound A with the molecular formula (+) C4H9Br undergoes hydrolysis to form (+) C4H9OH. Give the structure of A and write the mechanism of the reaction.
Discuss SN2 mechanism of methyl bromide using aqueous KOH.
