Question

which of the following reactions confirm the presence of saturation in benzene.
(a) Bromination in sunlight
(b) Catalytic oxidation
(c) Bromination with FeBr3
(d) Hydrogenation ​

Answer 1

Answer:

a . bromination in sunlight

Answer 2

Answer:

The correct answer is option A

Explanation:

When a compound undergoes bromination, bromine is added to the compound as a result of the chemical reaction. After bromination, the product will have different properties from the initial reactant.

Different Brominations

• Depending on the reactant, there are various ways that bromination can happen.
• Bromination of a saturated compound occurs through a free radical mechanism.
• An addition reaction causes the bromination of an unsaturated hydrocarbon.
• An electrophilic substitution process called bromination is used to transform an aromatic compound.

Using a Free Radical Mechanism to Bromine

In the saturated compound, this kind of reaction takes place.

The following steps constitute the reaction's mechanism.

Beginning Step

• When exposed to UV radiation, the Br-Br bond of elemental bromine goes through homolytic fission, producing two bromine radicals.

Step of Propagation

• The ethyl radical is created when an ethane hydrogen atom is removed by a bromine radical. Bromoethane is created when the ethyl radical removes a bromine atom from a bromine molecule.
• A bromine atom is also recreated in the second step. Repeating these steps repeatedly will result in termination.

Step of Termination

• Br2 is produced as a result of a bromine atom reacting with another bromine atom.
• Bromoethane is created when an ethyl radical and a bromine atom combine.
• Butane can also be created by the combining of two ethyl radicals.

Reference Link

• https://brainly.in/question/8356933
• https://brainly.in/question/15977096