23. Which of following will undergo aldol condensation ? (a)2,2-dimethyl propanal (b)2-methyl butanal (c)2,2,4-trimethyl pentan-3-one (d)2-methyl cyclohexanone

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Which of the following compounds would undergo aldol condensation, which the Cannizzaro reaction and which neither ? Write the structures of the expected products of aldol condensation or Cannizzaro reaction ?

Methanal

2-methyl pentanal

Benzaldehyde

Benzophenone

Cyclohexanone

l - phenyl propanone

Phenyl acetaldehyde

Butan - 1 - ol

2, 2 - dimethyl butanal

Q. Which of the given aldehydes will not give aldol condensation reactions?

(1) Propanal (2) Ethanal (3)

2.2

-dimethylpropane (4)

2, 2

-dimethyl butanal (5) Benzaldehyde

Q. Which is the product formed when cyclohexanone undergoes aldol condensation followed by heating?

Of the following, which is the product formed when cyclohexanone undergoes aldol condensation followed by heating?

Q. Which of the following compounds would undergo aldol condensation, which undergoe Cannizzaro reaction and which neither? Write the structures of the expected products of aldol condensation and Cannizzaro reaction.
(i) Methanal (ii) 2-Methylpentanal (iii) Benzaldehyde
(iv) Benzophenone (v) Cyclohexanone (vi) 1-Phenylpropanone
(vii) Phenylacetaldehyde (viii) Butan-1-ol (ix) 2,2-Dimethylbutanal

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