Home
Class 12
CHEMISTRY
Ketones do not reduce Tollen's reagents,...

Ketones do not reduce Tollen's reagents, but fructose with a keto group reduces it. It is attributed to

A

enolisation of keto group of fructose and then, its transformation into aldehyde group in presence of `OH^(-)` which is present in Tollen's reagent

B

`lt CHOH ` group which is also oxidised to keto group

C

Both (A) and (B) statements are correct

D

None of the above statement is correct

Text Solution

Verified by Experts

The correct Answer is:
A
enolisation of keto group of fructose and then, its transformation into aldehyde group in presence of `OH^(-)` which is present in Tollen.s reagent
Promotional Banner

Topper's Solved these Questions

  • POLYMERS, BIOMOLECULES AND CHEMISTRY IN EVERYDAY LIFE

    BRILLIANT PUBLICATION|Exercise LEVEL -III (Single Correct Answer Type)|9 Videos

  • POLYMERS, BIOMOLECULES AND CHEMISTRY IN EVERYDAY LIFE

    BRILLIANT PUBLICATION|Exercise LEVEL -III (Multiple Correct Answer Type)|11 Videos

  • POLYMERS, BIOMOLECULES AND CHEMISTRY IN EVERYDAY LIFE

    BRILLIANT PUBLICATION|Exercise LEVEL -III (Comprehension Type) |12 Videos

  • P-BLOCK ELEMENTS

    BRILLIANT PUBLICATION|Exercise LEVEL-III|50 Videos

  • REDOX REACTION & ELECTROCHEMISTRY

    BRILLIANT PUBLICATION|Exercise QUESTION (ELECTROCHEMISTRY) (LEVEL -II) (ASSERTION-REASON)|3 Videos

Similar Questions

Explore conceptually related problems

Fructose reduces Tollen's reagent due to

Which among the following reduces Tollen's reagent?

An organic compound cọntains 69.77 %carbon, 11.63 % hydrogen and rest oxygen. The molecular mass of the compound is 86 . It does not reduce Tollens' reagent but forms an addition compound with sodiumhydrogensulphite and give positive iodoform test. On vigorous oxidation it gives ethanoic and propanoicacid. Write the possible structure of the compound.

Which of the following reagents is used to reduce acetone to isopropyl alcohol?

An organic compound with the molecular formula C₉H₁₀O.forms 2,4-DNP derivative, reduces Tollens reagent and undergoes Cannizzaro reaction. On vigorous oxidation, it gives 1,2 benzenedicarobxylic acid. Identify the compound.

An organic compound 'A' with molecular formula C_(7)H_(6)O forms 2,4-DNP derivative and reduces Tollens' reagent. When 'A' is heated with conc. NaOH, it gives sodium benzoate and compound 'B'. The compound 'B' is

An organic compound of molecular formula C_(9)H_(10)O forms 2, 4-DNP, reduces Tollens reagent and undergoes Cannizzaro reaction. On vigorous oxidation it gives phthalic acid. The compound is:

An organic compound of M.F. C_(8)H_(8)O forms 2, 4-DNP derivative, reduces. Tollens reagent and undergoes Cannizzaro reaction. On vigorous oxidation it gives Benzene-1, 2-dicarboxylic acid. The compound is

An organic compound 'X' C_(8)H_(8)O forms an orange-red precipitate of 2, 4-DNP and gives yellow precipitate with iodine and aqueous sodium carbonate on heating. It neither reduces Tollens or Fehlings reagent, nor does it decolourise bromine water or Baeyers reagent. On drastic oxidation wtih chromic acid, it gives a carboxylic acid 'Y' (C_(7)H_(6)O_(2)) . Compounds X and Y are

BRILLIANT PUBLICATION-POLYMERS, BIOMOLECULES AND CHEMISTRY IN EVERYDAY LIFE -LEVEL -II
  1. Which type of interactions are responsible for making thealpha-helix s...

    Text Solution

    |

  2. On boiling, what structural changes take place in the egg white?

    Text Solution

    |

  3. Ketones do not reduce Tollen's reagents, but fructose with a keto grou...

    Text Solution

    |

  4. If alpha-D-glucopyranose is reacted with acetic anhydride at 373 K, th...

    Text Solution

    |

  5. Periodic acid splits glucose and fructose into formic acid and formald...

    Text Solution

    |

  6. A tripeptide on complete hydrolysis gives glycine, alanine and phenyla...

    Text Solution

    |

  7. Consider the following statements concerning proteins I. All natural...

    Text Solution

    |

  8. Assume that a particular amino acid has an isoelectric point of 6.0. I...

    Text Solution

    |

  9. Aspartame, an artifical sweetener, is a peptide and has the following ...

    Text Solution

    |

  10. Complete hydrolysis of starch gives

    Text Solution

    |

  11. Which one of the following statements is correct?

    Text Solution

    |

  12. An amino acid that does not form an a-helix is

    Text Solution

    |

  13. Identify the correct statements regarding enzymes

    Text Solution

    |

  14. In both DNA and RNA, heterocyclic base and phosphate ester linkages ar...

    Text Solution

    |

  15. Which statement is incorrect about peptide bond?

    Text Solution

    |

  16. Which of the following reactions of glucose can be explained only by i...

    Text Solution

    |

  17. Starch is a mixture of two components, a water soluble component amylo...

    Text Solution

    |

  18. Which of the following hormones is produced under the conditions of st...

    Text Solution

    |

  19. The correct statement regarding RNA and DNA, respectively is

    Text Solution

    |

  20. Those low molecular mass chemicals that interact with macromolecular t...

    Text Solution

    |