Question

a) SN1 mechanism and SN2 mechanism differ in the nature of products formed
b) Alkyl halides differ in their reaction towards aqueous KOH and alcoholic KOH c) Propyne forms 2, 2, dibromopropane in presence of HBr​

Answer 1

Correct option is

A

competing reaction for an S

N

2 reaction is rearrangement

S

N

2 reaction does not involve rearrangement as it is a concerted one step reaction. However, SN

1

undergoes rearrangement reaction.

Option A is an incorrect statement.

Answer 2

Answer :-

• SN₁ mechanism and SN₂ mechanism don't differ in the nature of products formed. They differ in the paths (Mechanism) followed to obtain the product.

• Alkyl halides differ in their reaction towards aqueous KOH and alcoholic KOH. With aqueous KOH, alkyl halides do substitution reaction and with alcoholic KOH, alkyl halides do elimination reaction.
• Propyne forms 2, 2, dibromo propane in presence of HBr​. It follows Markownikoff's rule.

Remarks :-

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