Home
Class 12
CHEMISTRY
2-bromopentane is heated with postassium...

2-bromopentane is heated with postassium ethoxide in ethano1 The major product obtained is .

A

Pentene-1

B

cis pentane-2

C

trans pentene-2

D

2-ethoxypentane

Text Solution

Verified by Experts

The correct Answer is:
C
`CH_(3)-underset(Br)underset(|)(CH)-CH_(2)-CH_(2)-CH_(3)+KOH underset("Elimination in reaction")overset(C_(2)H_(5)OH)tounderset("2-pentene")(CH_(3)-CH)=CH-CH_(2)-CH_(3)`
When alkyl halide reacts with alc. KOH then it favours elimination reaction (Dehydrohalogenation). Since, trans pent-2-ene is more symmetrical tha cis isomer. Hence, it is main product.
Promotional Banner

Similar Questions

Explore conceptually related problems

2- bromopentane is heated with potassium ethoxide in ethanol the major product is (A) Trans - pent- 2- ene (B) 2- ethoxy pentane (C) Pent-1-ene (D) Cis pent - 2- ene

1 -Bromobutane is treated with sodium ethoxide in ethanol. The major product obrained is

product. The major product obtained is

2- Bromopentane is heated with EtO^(-) Na^(+) in ethanol. The major product obtained is

2-Bromopentane is heated with EtO^(-)Na^(+) in ethanol. The major product obtained is

In the reaction The major product obtained is:

In the following reaction The major product obtained is :

In the following reaction, the major product obtained is

In the following reaction , the major product obtained is