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Which of the following pairs give positi...

Which of the following pairs give positive Tollen's test ?

A

Glucose, sucrose

B

Glucose, fructose

C

Hexanal, acetophenone

D

Fructose, sucrose

Text Solution

Verified by Experts

The correct Answer is:
B
Aldehydes and `alpha`-hydroxy ketones give positive tollen's test. Glucose has an aldehyde group and fructose is an `alpha ` hydroxy ketone.
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ERRORLESS -BIOMOLECULES AND POLYMER-Jee setction (Only one choice correct answer)
  1. Schweitzer's reagent used for dissolving cellulose in the manufacture ...

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  2. Which of the following pairs give positive Tollen's test ?

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  3. The two forms of D-glucopyranose obtained from solution of D-glucose a...

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  4. Cellulose upon acetylation with excess acetic anhydride/H(2)SO(4) (cat...

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  5. Among cellulose, poly (vinyl chloride), nylon and natural rubber, the ...

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  6. The correct statement about the following disaccharide is

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  7. The following carbohydrates is

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  8. Synthesis of each molecule of glucose in photosynthesis involves :

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  9. Which one is classified as a condensation polymer ?

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  10. Which of the following base is not present in DNA ?

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  11. The structure of D-(+)-glucose is The structure of L-(-)-glucos...

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  12. Which of the vitamins given below is water soluble ?

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  13. Which of the following compounds will behave as a reducing sugar in an...

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  14. Glucose on prolonged heating with HI gives

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  15. Which of the following is monosaccharide

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  16. Glucose on reduction with NaBH(4) gives

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  17. Amino acid are

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  18. Which of the following is a natural polymer?

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  19. Which of the following is not a polyamide?

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  20. The products expected from the reaction {:(CHO),("|"),(CH(2)),("|"),...

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