Mechanism of the Reaction Between Ethene and Bromine - Polarisation

Question 1

Describe the C=C double bond in ethene?

Answer 1

It is a region of high concentration of negative charge

Question 2

What are in ethene is an area of negative charge?

Answer 2

The C=C double bond

Question 3

What happens when the Br2 molecule approaches the C=C double bond?

Answer 3

It becomes polarises as a result of repulsion by the electrons in the double bond

Question 4

Why does the Br2 molecule become polarised?

Answer 4

As a result of repulsion by the electrons in the double bond

Question 5

What do the electrons in the double bond cause to happen?

Answer 5

They cause the Br2 molecule to become polarised as it approached the bond

Question 6

List the events that happen during stage one, polarisation.

3

Answer 6

Bromine molecule approaches ethene

As bromine nears the highly negative C=C double bond of ethene it becomes polarised

The bromine molecule is polarised as a result of repulsion by the electrons in the double bond