Question

41.
The IUPAC name of the following compound is -
CH,
CH, - CH – C = CH
CH,
(A) 3-Ethyl-2-methylbut-3-ene
(C) 2-Methyl-3-ethylbut-3-ene
(B) 2-Ethyl-3-methylbut-1-ene
(D) 3-Methyl-2-ethylbut-1-ene​

Answer 1

Answer:

CH

|

CH - CH - C = CH

|

CH

Let's select the longest chain with double bond.Obviously the longest chain has 5 carbon atoms.

So root word is pent.

There is double bond in first carbon itself.

There is methyl group in 4th carbon.

The name of the compound is 4 methyl pentene.

Explanation:

Options are wrong.Believe me.I am never wrong at these!