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Which reagent can distinguish between pe...

Which reagent can distinguish between pentanoic acid and pentanamide ?

A

Cold `dil. NaOH`

B

Cold `dil. NaHCO_3`

C

Cold `conc. H_2 SO_4`

D

All

Text Solution

Verified by Experts

The correct Answer is:
D
(a) Amides are hydrolysed by dilute `NaOH` to give `NH_3`.
(b) `NaHCO_3` reacts with acids to give `CO_2 (g)`.
( c) Amides are also hydrolysed in acidic conditions.
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CENGAGE CHEMISTRY-CARBOXYLIC ACIDS AND THEIR DERIVATIVES-Exercises (Singlecorrect)
  1. Which of the following is the strongest acid ?

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  2. Which of the following would give (-)-2-butanol ?

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  3. Which reagent can distinguish between pentanoic acid and pentanamide ?

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  4. The compound (D) is :

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  5. Compound (D) is :

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  6. Which H atom in the following ester is most acidic ? overset(1)(CH(3...

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  7. Product (B) in the reaction is : .

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  8. The reactant (A) is the reaction is : .

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  9. Product ( C) is :

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  10. Product ( C) is :

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  11. and find out the reagent (A) from the following :

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  12. The decreasing order of ease of hydrolysis of the following esters is ...

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  13. The boiling points of ethyl acetate and CH3 OH, respectively, are 77^@...

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  14. Carboxylic acid, although unreactive to alcohols, reacts in the presen...

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  15. The major product ( C) in the reaction is : .

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  16. Which of the following is the best method for the synthesis of ester (...

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  17. Which of the following is the best method for the synthesis of alpha-h...

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  18. Which of the following statements is wrong about the transesterificati...

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  19. The molecular weight of benzoic acid in benzene as determined by depre...

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  20. Which of the following reactions would give a good yield of hydrocarbo...

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