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Compound (A) undergoes Cannizzaro reacti...

Compound (A) undergoes Cannizzaro reaction and (B) undergeos positive iodoform test. Therefore

A

A=Acetaldehyde ,B=1-Pentanal

B

A=`C_(6)H_(5)CH_(2)CHO,B=1-Pentanone`

C

A=Formaldehyde,B=2-Pentanone

D

A=Propionaldehyde,B=1-Pentanol

Text Solution

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The correct Answer is:
C
Aldehyde having no `alpha-H` on heating with conc. Alkali undergo disproportionation, known as Cannizzaro reaction.Ketones do not give this reaction. Compounds containing `CH_(3)-CO` group `CH_(3)-CH-OH` group give positive iodoform test. Among the given options,only option (c ) i.e., HCHO and `CH_(3)CH_(2)CH_(2)COCH_(3)` respond to the respective reactions.
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MARVEL PUBLICATION-ALDEHYDES,KETONES AND CARBOXYLIC ACIDS-CARBOXYLIC ACIDS
  1. Compound (A) undergoes Cannizzaro reaction and (B) undergeos positive ...

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  2. In the case of carboxylic acids,the alpha-carbon is the carbon:

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  3. General formula for mono-carboxylic acid is :

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  4. Aliphatic carboxylic acid are functional isomers of

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  5. Compound having molecular formula C(3)H(6)O(2) is:-

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  6. Which of the following formula represent chloroethanoic acid ?

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  7. Fatty acids are

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  8. General formula for mono-carboxylic acid is :

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  9. Which of the following is example of tricarboxylic acid ?

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  10. Glacial acetic acid is the same as :

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  11. Which of the follwong compound does not have a carboxyl group.

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  12. Acetic acid is a weak acid because :

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  13. Which one of the following is ethanoic acid ?

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  14. The common name of CH(3)(CH(2))(16)COOH acid is :

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  15. The I.U.P.A.C. name of CH(3)-CH(2)-underset(CH(3))underset(|)(C)H-CH(2...

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  16. The I.U.P.A.C. name of lactic acid CH(3)CHOHCOOH is :

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  17. The IUPAC name of the compound :

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  18. Which of the following acids occur in ants ?

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  19. Most of the carboxylic acids exists as dimer in

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  20. Acetic acid can be separated from aqeous solution of acetic acid,at wh...

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  21. Which of the following is isobutyric acid?

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