The relative rates of reaction of ethane, toluene, and ethylbenzene with bromine atoms have been measured.

The most reactive hydrocarbon undergoes hydrogen atom abstraction a million times faster than does the least reactive one.

Arrange these hydrocarbons in order of decreasing reactivity.

Question

Mckenna Hardy

Chemistry

16 April, 03:16

The relative rates of reaction of ethane, toluene, and ethylbenzene with bromine atoms have been measured.

The most reactive hydrocarbon undergoes hydrogen atom abstraction a million times faster than does the least reactive one.

Arrange these hydrocarbons in order of decreasing reactivity.

+5

Answers (1)

Know the Answer?

Isla Burton · Answer 1

Reactivity: Ethyl benzene > Toluene > Ethane

Explanation:

The order of reactivity depends on how easily the most reactive hydrogen can be abstracted.

The order of reactivity of hydrogen is : 1° < 2° < 3° < Benzyllic based on the stabilizing effects like inductive effect, hyperconjugation, resonance effect.

In ethane, all the hydrogen present are 1°. In toluene, the most reactive hydrogen is benzyllic. In Ethyl Benzene, the most reactive hydrogen is 2° as well as benzyllic.

Hence the order of decreasing reactivity : Ethyl Benzene, Toluene, Ethane.

The relative rates of reaction of ethane, toluene, and ethylbenzene with bromine atoms have been measured.The most reactive hydrocarbon undergoes hydrogen atom abstraction a million times faster than does the least reactive one.Arrange these hydrocarbons in order of decreasing reactivity.

The relative rates of reaction of ethane, toluene, and ethylbenzene with bromine atoms have been measured.

The most reactive hydrocarbon undergoes hydrogen atom abstraction a million times faster than does the least reactive one.

Arrange these hydrocarbons in order of decreasing reactivity.