Which of the following compounds do not ...

Which of the following compounds do not undergo aldol condensation?

`CH_3 -CHO`

`CH_3-overset(O) overset(||)C-CH_3`

`CH_3-underset(CH_3) underset(|) overset(CH_3)overset(|)C-CHO`

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The correct Answer is:

B:D

In these compounds `, alpha `- hydrogen is absent .

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Which of the following compound do not undergo aldol condensation

`CH_(3)-CHO`

`C_(6)H_(5)-CHO`

`CH_(3)overset(O)overset(||) ( C) -CH_(3)`

`CH_(3)-overset(CH_3)overset(|)underset(CH_3)underset(|)C-CHO`.

ethanal

propanal

2,2,2-trichloroethanal

2,2-dibromoethanals

Acetone

Formaldehyde

Acetaldehyde

Benzaldehdye