Question

Ozonolysis of 3-Methyl-1-butene gives a mixture of
(1) Propanal and ethanal
(2) Propanone and ethanal
(3) 2-Methylpropanal and methanal
(4) Butanone and methanal

Answer 1

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Answer 2

Answer:

When ozone is present, an organic process called ozonolysis takes place that causes unsaturated hydrocarbons like alkenes, alkynes, or azo compounds to break. While azo compounds produce nitrosamines, unsaturated hydrocarbons like alkenes and alkynes generate organic molecules. The oxidation of alkenes with ozone, production of ozonide, and conversion to reaction derivatives under the appropriate workup conditions are the three main stages in the mechanism of ozonolysis.

Explanation:

The ozonolysis of 3-methyl-1-butene gives a mixture of 2-methylpropanal (H₃C-CH₂-CH(CH₃)-CH₃) and methanal (HCHO).

The reaction is as follows below:

       H₃C-CH₂-CH(CH₃)-CH₃ + O → CH₃-CH(CH₃)-CHO + HCHO

The oxidation of alkenes with ozone, production of ozonide, and conversion to reaction derivatives under the appropriate workup conditions are the three main stages in the mechanism of ozonolysis.

Thus, the product of the ozonolysis of the given compound is a mixture of two aldehydes i.e., 2-methylpropanol and methanol.

Hence, the correct option is (3) 2-Methylpropanal and methanal.

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