Home
Class 12
CHEMISTRY
In the reaction CH(3)CHO+HCNrarrCH(3...

In the reaction
`CH_(3)CHO+HCNrarrCH_(3)CH(OH)CNoverset(H_(2)O)rarrCH_(3)CH(OH)COOH`
an asymmertic cabron is generated. The acid obtained would be

A

d-isomer

B

l-isomer

C

50% d and 50% l-isomer

D

20% d and 80% l-isomer

Text Solution

Verified by Experts

The correct Answer is:
C
(c) The product is lactic acid `CH_(3)CH(OH)COOH`. It has a chiral carbon and will exist as a recemic mixture in which both d-and /-isomers are in equal proportions.
Promotional Banner

Topper's Solved these Questions

  • CARBOXYLIC ACIDS

    DINESH PUBLICATION|Exercise MATRIX-MATCH TYPE QUESTIONS|5 Videos

  • CARBOXYLIC ACIDS

    DINESH PUBLICATION|Exercise BRAIN STORMING MULTIPLE CHOICE QUESTIONS (MCQS)|13 Videos

  • CARBOXYLIC ACIDS

    DINESH PUBLICATION|Exercise ASSIGNMENT|56 Videos

  • BIOMOLECULES

    DINESH PUBLICATION|Exercise MATRIX - MATCH TYPE|8 Videos

  • CHEMICAL BONDING AND MOLECULAR STRUCTURE

    DINESH PUBLICATION|Exercise Unit Test - 1|20 Videos

Similar Questions

Explore conceptually related problems

In the reaction : CH_3CHO+HCN to CH_3 CH(OH)CN overset(H.OH)to CH_3 CH(OH)COOH an asymmetric centre is generated. This acid obtained would be :

CH_(3)CH(OH)CH_(2)CH_(2)COOH

DINESH PUBLICATION-CARBOXYLIC ACIDS -MULTIPLE CHOICE QUESTION BANK (MCQB)
  1. The intermediates formed during the reaction of R-overset(O)overset(||...

    Text Solution

    |

  2. In a set of the given reactions, acetic acid yields a product C. CH(...

    Text Solution

    |

  3. In the reaction CH(3)CHO+HCNrarrCH(3)CH(OH)CNoverset(H(2)O)rarrCH(...

    Text Solution

    |

  4. o-Toluic acid on reaction with Br(2) + Fe gives

    Text Solution

    |

  5. In a set of reactions, acetic acid yielded a product D. The struc...

    Text Solution

    |

  6. In a set of reactions propionic acid yielded a compound D CH(3)CH(2)...

    Text Solution

    |

  7. Which of the following represents the correct order of the acidic stre...

    Text Solution

    |

  8. In a set of reaction m-bromobenzoic acid gives a product D. Identify t...

    Text Solution

    |

  9. An orgainc compound A upon reacting with NH(3) gives B On heating B gi...

    Text Solution

    |

  10. Which of the following acids does not exhibit optical isomerism?

    Text Solution

    |

  11. Methylbenzoate can he prepared by :

    Text Solution

    |

  12. Which of the following reactions involves the formation of a methyl es...

    Text Solution

    |

  13. The enolic form of ethyl acetoacetate as shown below has

    Text Solution

    |

  14. Glutaric acid is :

    Text Solution

    |

  15. The correct order of strengths of the carboxylic acids

    Text Solution

    |

  16. Carboxylic acid have higher boiling points than aldehydes, ketones an...

    Text Solution

    |

  17. What are the suitable reagents for the following conversion ?

    Text Solution

    |

  18. Which is the strongest acid ?

    Text Solution

    |

  19. Acrylic acid reacts with HBr to give :

    Text Solution

    |

  20. Which of the following cannot reduce fehling's solution and tollen's r...

    Text Solution

    |