Home
Class 12
CHEMISTRY
In the Rosenmund's reduction , BaSO(4) t...

In the Rosenmund's reduction , `BaSO_(4)` taken with catalyst Pd acts as `:`

A

Promoter

B

Catalytic poison

C

Co-operator

D

Absorber

Text Solution

Verified by Experts

The correct Answer is:
B

Barium sulphate has a low surface area which reduces the activity of palladium, preventing over reduction. So `BaSO_4` act as a catalytic poison. If further reduction takes place, it will create a primary alcohol
Promotional Banner

Topper's Solved these Questions

  • ALDEHYDES AND KETONES

    ERRORLESS|Exercise NCERT BASED QUESTIONS(PROPERTIES OF ALDEHYDES AND KETONES)|88 Videos
  • ALDEHYDES AND KETONES

    ERRORLESS|Exercise NCERT BASED QUESTIONS(FORMALDEHYDE)|6 Videos
  • ALDEHYDES AND KETONES

    ERRORLESS|Exercise ASSERTION AND REASON|10 Videos
  • ALCOHOLS, PHENOLS AND ETHERS

    ERRORLESS|Exercise Assertion & Reason|20 Videos
  • BIOMOLECULES

    ERRORLESS|Exercise ASSERTION & REASON |16 Videos

Similar Questions

Explore conceptually related problems

Rosenmund Reduction

In the Rosenmund reduction, the catalyst used is :

In Clemmensen's reduction , the catalyst used is

RCOCl+ H_(2)overset(Pd//BaSO_(4)//S)toRCHO+HCl In the above reaction (Rosenumed reduction), BaSO_(4)//S asts as:

ERRORLESS-ALDEHYDES AND KETONES-NCERT BASED QUESTIONS(PREPARATION OF ALDEHYDES AND KETONES)
  1. Addition of water to alkynes occurs in acidic medium and in the presen...

    Text Solution

    |

  2. CH3 -C-= CH underset(1% Hg SO4 ) overset(40% H2SO4 )to A overset(...

    Text Solution

    |

  3. CH-=CH underset(H2SO4)overset(HgSO4)to underset(H2O)overset(CH3MgBr)to...

    Text Solution

    |

  4. Dry heating of calcium acetate gives

    Text Solution

    |

  5. Identify the product C in the series CH(3)CN overset("Na/"C(2)H(5)OH...

    Text Solution

    |

  6. On heating calcium acetate and calcium formate, the product formed is ...

    Text Solution

    |

  7. Which of the following compound gives a ketone with Grignard reagent?

    Text Solution

    |

  8. In the Rosenmund's reduction , BaSO(4) taken with catalyst Pd acts as ...

    Text Solution

    |

  9. Secondary nitroalkanes can be converted into ketones by using Y. Ident...

    Text Solution

    |

  10. An alkene of molecular formula C(9) H(18) on ozonolysis gives 2.2 dime...

    Text Solution

    |

  11. When a mixture of calcium benzoate and calcium acetate is dry distille...

    Text Solution

    |

  12. Predict the product (B) in the following sequence of reactions: "Eth...

    Text Solution

    |

  13. Among the following compounds, which will not repond to cannizzaro's r...

    Text Solution

    |

  14. Select the reagent for the following reaction

    Text Solution

    |

  15. Which of the following pathways produces 2-hexanone? (i)1-Hexyne is...

    Text Solution

    |

  16. Identify ‘C’ in the following

    Text Solution

    |

  17. In the following reaction: R-MgBr+HC(OEt)(3)overset("Ether")rarrover...

    Text Solution

    |

  18. The reaction which involves dichloro carbene as an electrophile is :

    Text Solution

    |

  19. Reimer -Tiemann reaction involves a

    Text Solution

    |

  20. The major products in the reaction Br3C CHOoverset(NaOH)to are-

    Text Solution

    |