Propene on ozonolysis forms:a)Acetaldehydeb)Formaldehydec)Both acetaldehyde and formaldehyded)AcetoneCorrect answer is option 'C'. Can you explain this answer?

Question

Answer

Answer

When propene on ozonolysis it yields a new structure called ozonide
and there cleavage takes place and it yields two products namely
1.acetaldehyde
2.formaldehyde

Answer

Ozonolysis is a chemical reaction that involves the cleavage of carbon-carbon double bonds by ozone (O3). In the case of propene (CH2=CHCH3), ozonolysis leads to the formation of several products. However, the correct answer in this case is option 'C' which states that both acetaldehyde and formaldehyde are formed.

Here is a detailed explanation:

1. Ozonolysis of propene:
When propene is treated with ozone, the double bond undergoes oxidative cleavage, resulting in the formation of two carbonyl compounds. The reaction proceeds through a series of steps:

- Step 1: Ozone (O3) reacts with propene (CH2=CHCH3) to form an unstable primary ozonide. This step involves the addition of ozone to the double bond of propene.

- Step 2: The primary ozonide undergoes a rearrangement called the Criegee rearrangement, resulting in the formation of a more stable secondary ozonide.

- Step 3: The secondary ozonide undergoes further decomposition to give two carbonyl compounds. In the case of propene, the two carbonyl compounds formed are acetaldehyde (CH3CHO) and formaldehyde (HCHO).

2. Formation of acetaldehyde and formaldehyde:
The decomposition of the secondary ozonide leads to the formation of two aldehyde compounds. Acetaldehyde is formed when the methyl group (CH3) is attached to the carbonyl carbon, while formaldehyde is formed when the hydrogen atom (H) is attached to the carbonyl carbon.

3. Other possible products:
In addition to acetaldehyde and formaldehyde, other products can also be formed during the ozonolysis of propene, depending on the reaction conditions. These include acetone, carbon dioxide, and water. However, in this particular question, the options provided do not include acetone.

In conclusion, the ozonolysis of propene results in the formation of both acetaldehyde and formaldehyde as the major products.

Answer

Option C is correct answer

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