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  4. Acetone will be obtained by the ozonolysis of

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Q. Acetone will be obtained by the ozonolysis of

VMMC MedicalVMMC Medical 2009

Solution:

Acetone is obtained by the ozonolysis of iso-butene, while 1-butene and 2-butene on ozonolysis give aldehyde and 2-butyne gives diketone. $ \underset{iso-\text{butene}}{\mathop{C{{H}_{3}}-\overset{C{{H}_{3}}}{\mathop{\overset{|}{\mathop{C}}\,}}\,=C{{H}_{2}}}}\,\xrightarrow[Zn/{{H}_{2}}{{O}_{2}}]{{{O}_{3}}}\underset{\text{acetone}}{\mathop{C{{H}_{3}}-\overset{C{{H}_{3}}}{\mathop{\overset{|}{\mathop{C}}\,}}\,=O}}\, $ $ \underset{\text{formaldehyde}}{\mathop{+HCHO}}\, $