Question

Cyclohexene on Ozonolysis followed by reaction with zinc dust and water gives compound (A). Compound (A) is:
A.

B.

C.

D.

             

Answer 1

Hint: Ozonolysis refers to the organic reaction in which the multiple carbon-carbon bonds are replaced by a carbonyl group. There is the cleavage of bonds by ozone during the reaction. Ozonolysis is the type of oxidation reaction.

Complete step by step answer:
First, we will discuss the basics of the ozonolysis reaction. Ozonolysis is an organic reaction in organic chemistry that helps in predicting the position of carbon-carbon double bonds in unsaturated compounds. So, we can conclude that ozonolysis can be used for the test of unsaturation. Now we will come back to our question which says that Cyclohexene on Ozonolysis followed by reaction with zinc dust and water gives compound (A). Here, the reactant cyclohexene is an unsaturated compound due to the presence of a carbon-carbon double bond. The reaction can be written as follows.

Now we will understand the step by step mechanism of the above reaction. The first, step of the reaction is ozonolysis in which there is the cleavage of carbon-carbon double bond and we know that ozonolysis determines the position of unsaturated bonds and the ozonolysis takes place on it which means there is the cleavage of the bond by ozone. Now in the question, we are asked that ozonolysis is followed by zinc dust and water. We know that there will be an oxidation reaction on the ozonolysis product so the final product will be an oxidized product that is aldehyde or carbonyl group.
Therefore, the correct option is (D).

Note:
The name of the compound (A) formed is Apidaldehyde. Ozonolysis is always followed by zinc dust to prevent further oxidation of the compound formed. Zinc prevents the compound from further making more bonds and hence stops the reaction process.