Home
Class 12
CHEMISTRY
On heating acetaldehyde, with Fehling's ...

On heating acetaldehyde, with Fehling's solution, we get a precipitate whose color is

A

Pink

B

Black

C

Yellow

D

Brick red

Text Solution

Verified by Experts

The correct Answer is:
D
Fehling.s solution is tartaric acid complex of cupric ions. It is blue in color. When it is heated with acetaldehyde, a red precipitate of cuprous oxide `(Cu_2O )` is obtained.
Promotional Banner

Topper's Solved these Questions

  • ALDEHYDES ,KETONES AND CARBOOXALIC ACIDS

    ACCURATE PUBLICATION|Exercise PART-A (ALDEHYDES AND KETONES - 1 MARK QUESTIONS)|21 Videos

  • ALDEHYDES ,KETONES AND CARBOOXALIC ACIDS

    ACCURATE PUBLICATION|Exercise CARBOXYLIC ACID (1 MARK QUESTIONS )|20 Videos

  • ALDEHYDES ,KETONES AND CARBOOXALIC ACIDS

    ACCURATE PUBLICATION|Exercise DISTINGUISH TEST |5 Videos

  • ALCOHOL, PHENOL AND ETHER

    ACCURATE PUBLICATION|Exercise ETHERS|16 Videos

  • BIOMOLECULES

    ACCURATE PUBLICATION|Exercise 2 MARK QUESTIONS |29 Videos

Similar Questions

Explore conceptually related problems

When ethanal is heated with Fehling's solution, it gives a precipitate of :

Benzaldehyde reduces Fehling Solution.

A cell when kept in sugar solution,gets hydrated.then solution is:

Which of the following cannot reduce Fehling solution?

Explain the oxidation of carbonyl compounds with Fehling solution.

Which energy do we get on earth?

ACCURATE PUBLICATION-ALDEHYDES ,KETONES AND CARBOOXALIC ACIDS-PART-A (ALDEHYDES AND KETONES -MULTIPLE CHOICE QUESTIONS (1 MARK))
  1. The formula of haloform is :

    Text Solution

    |

  2. Formaldehyde condenses with phenol in the presence of dilute H2 SO4 to...

    Text Solution

    |

  3. On heating acetaldehyde, with Fehling's solution, we get a precipitate...

    Text Solution

    |

  4. Which of the following will not give addition reaction with NaHSO3

    Text Solution

    |

  5. Write the empirical formula of the compounds having the molecular form...

    Text Solution

    |

  6. Aldehyde and ketone have same general formula for homologous series

    Text Solution

    |

  7. Oxidation of primary alcohol gives :

    Text Solution

    |

  8. Nucleophilic addition reactions are catalyzed by:

    Text Solution

    |

  9. Ethanal is prepared industrially by air oxidation of ethylene using pa...

    Text Solution

    |

  10. Acetaldehydc cyanohydrin on acid hydrolysis yields in

    Text Solution

    |

  11. Acetal on acid hydrolysis generates

    Text Solution

    |

  12. Which of the following is a symmetrical ketone ?

    Text Solution

    |

  13. In base catalyzed reaction of carbonyl compound the catalyst

    Text Solution

    |

  14. What is the other name of ester-interchange reaction ?

    Text Solution

    |

  15. Complete the following reaction : C H 3 C H 2 B r + K O H ( a q ) →

    Text Solution

    |

  16. What is the disadvantage of hydrochloic Acid ?

    Text Solution

    |

  17. Which of the following carboxylic acids has the highest boiling point ...

    Text Solution

    |

  18. The IUPAC name of CH3 COCH(CH3)2 is

    Text Solution

    |

  19. The pi bond in carbonyl carbon is formed by

    Text Solution

    |

  20. Which of the following contain an aldehyde ?

    Text Solution

    |