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Geometrical Isomerism

Which of the ...

Question

Which of the following carbonyl compounds on condensation gives an aromatic compound?

A

{C H}_{3} C H O

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B

H C H O

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C

{C H}_{3} C O {C H}_{3}

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D

{C H}_{3} {C H}_{2} C H O

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Solution

The correct option is C ${C H}_{3} C O {C H}_{3}$
Acetone ${C H}_{3} C O {C H}_{3}$ on condensation gives an aromatic compound.
Acetone is distilled with conc. $H_{2} S O_{4}$ to form mesitylene (1,3,5-trimethyl benzene) which contains aromatic benzene ring.

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Q. The olefin which on ozonolysis gives

{C H}_{3} {C H}_{2} C H O

{C H}_{3} C H O

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C_{6} H_{13} B r

gave two isomeric alkenes

(A)

(B)

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(B)

, the following compounds were obtained:

{C H}_{3} C O {C H}_{3}, {C H}_{3} C H O, {C H}_{3} {C H}_{2} C H O

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.

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(a)

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