Guest

An organic compound X(C 4 H 9 Br) on treatment with alc.KOH gave same isomeric product with the formula C 4 H 8 .On ozonolysis one of these gave only one product CH3CHO while the other gave two different products.The compound X is a.2-bromobutane b.2-bromopentane c.1,2-dibromobutane d.3-bromopentene

An organic compound X(C4H9Br) on treatment with alc.KOH gave same isomeric product with the formula C4H8.On ozonolysis one of these gave only one product CH3CHO while the other gave two different products.The compound X is


a.2-bromobutane


b.2-bromopentane


c.1,2-dibromobutane


d.3-bromopentene

Grade:12th Pass

1 Answers

Swapnil Saxena
102 Points
12 years ago

The answer is (a.) 2-bromobutane.

In presence of alc. KOH it shows elimintation reaction and two isomeric products are formed

  • First is the hoffmann product (less substituted minor) which is but1-ene
  • Second is the saytzeff product (more substituted major) which is but2-ene

On ozonolysis , the but1-ene gives methanal which is further oxidized to give CO2 and water. Beside it also gives propanal.

But2-ene give only one compound (2 mols) ethanal on ozonylsis .

 

Think You Can Provide A Better Answer ?

ASK QUESTION

Get your questions answered by the expert for free