Home
Class 12
CHEMISTRY
Aldehydes undergo disproportionation rea...

Aldehydes undergo disproportionation reaction in presence of aqueous NaOH. Simultaneous oxidation and reduction of a compound is scientifically called as disproportionation Aldehydes having no `alpha `-hydrogen show this reaction called Cannizzaro's reaction. Few exceptions are also there to this generalisation The reaction may be represented as
`C_6 H_5 -CHO C_6 H_5 underset(C_6 H_5 COONa +C_6 H_5 CH_2 OH) underset(|) CHO underset(Delta) overset(NaOH)to `
intramolecular cannizzaro reacation is also possible

The aldehyde which show Cannizzaro reaction is :

A

`CH_3 -CH_2 -cHO`

B

`CH_3 CH (CH_3) CHO`

C

`CH_3 CH (CI) CHO`

D

`C_2 H_5 CH_2 CHO`

Text Solution

Verified by Experts

The correct Answer is:
B

The only ` alpha ` hydrogen gives cannizzaro.s reaction
Promotional Banner

Topper's Solved these Questions

  • ALDEHYDES AND KETONES

    AAKASH SERIES|Exercise PRACTICE SHEET-2|30 Videos
  • ALDEHYDES AND KETONES

    AAKASH SERIES|Exercise PRACTICE SHEET-3|34 Videos
  • ALDEHYDES AND KETONES

    AAKASH SERIES|Exercise LEVEL-II LECTURE SHEET (EXERCISE-V)|16 Videos
  • ALCOHOLS, PHENOLS AND ETHERS

    AAKASH SERIES|Exercise ETHERS (OBJECTIVE EXERCISE-4)|50 Videos
  • ALKYL AND ARYL HALIDES

    AAKASH SERIES|Exercise OBJECTIVE EXERCISE - 4 (ASSERTION (A) & REASON (R) TYPE QUESTIONS)|19 Videos

Similar Questions

Explore conceptually related problems

Aldehydes undergo disproportionation reaction in presence of aqueous NaOH. Simultaneous oxidation and reduction of a compound is scientifically called as disproportionation Aldehydes having no alpha -hydrogen show this reaction called Cannizzaro's reaction. Few exceptions are also there to this generalisation The reaction may be represented as C_6 H_5 -CHO C_6 H_5 underset(C_6 H_5 COONa +C_6 H_5 CH_2 OH) underset(|) (CHO) underset(Delta) overset(NaOH)to intramolecular cannizzaro reacation is also possible The product formed in the following reaction will be : {:(CHO) ,( | ) ,(CHO):} overset(NaOH) to product

CH_3 -CH_2 -underset( O) underset(||) C - CHO overset( NaBH_4) to Product (s) in the above reaction is (are)

2C_6H_5I underset(Delta)overset(Cu)(to)C_6H_5 - C_6H_5 + Cu_2I_2 The reaction is known as

In the reaction sequence C_2 H_5 Cl + KCN overset(C_2 H_5 OH)to x underset(Delta)overset(H_3 O^(o+))to Y . What is the molecular formuls of Y ?

The product of the following reaction is C_(6)H_(5) CHO + CH_(3) CH_(2) CHO underset(Delta)overset(Dil.NaOH)(rarr)

AAKASH SERIES-ALDEHYDES AND KETONES-PRACTICE SHEET-1
  1. In the reaction sequence : C6H5 COCH3 overset( NH2 OH //H^+) to (X )...

    Text Solution

    |

  2. Which statements is/are correct ?

    Text Solution

    |

  3. Which of the following structures represent an acetal

    Text Solution

    |

  4. The product obtained in which of the following reactions is same

    Text Solution

    |

  5. Which of the following reagents is useful to distinguish between propo...

    Text Solution

    |

  6. Aldehydes undergo disproportionation reaction in presence of aqueous N...

    Text Solution

    |

  7. Aldehydes undergo disproportionation reaction in presence of aqueous N...

    Text Solution

    |

  8. Aldehydes undergo disproportionation reaction in presence of aqueous N...

    Text Solution

    |

  9. Aldehydes and ketones react with NH2 OH under slightly acidic conditio...

    Text Solution

    |

  10. Aldehydes and ketones react with NH2 OH under slightly acidic conditio...

    Text Solution

    |

  11. Aldehydes and ketones react with NH2 OH under slightly acidic conditio...

    Text Solution

    |

  12. Match the following columns

    Text Solution

    |

  13. Match the following columns

    Text Solution

    |

  14. Butanone & propanone were allowed to react is presence of OH,total ald...

    Text Solution

    |

  15. Among the following, the compounds which gives iodoform reaction with ...

    Text Solution

    |

  16. The number of aldehydes with formula C5 H(10) O is

    Text Solution

    |

  17. The number of ketone isomers containing benzene ring with formula C9 H...

    Text Solution

    |

  18. The disubstituted aldehyde derivatives with formula C9 H(1) O

    Text Solution

    |

  19. Total aldol products of reaction between CH3 CHO & CH3 CH2 CHO is

    Text Solution

    |

  20. Total number of Grignard reagent molecules which can react with

    Text Solution

    |