Home
Class 12
CHEMISTRY
The order of stability of the following ...

The order of stability of the following tautomeric compounds is
(i). `CH_(2)=overset(OH)overset(|)(CH)-CH_(2)-overset(O)overset(||)(C)-CH_(3)hArr`
(ii). `CH_(3)-overset(O)overset(||)(C)-CH_(2)-overset(O)overset(||)(C)-CH_(3)hArr`
(iii). `CH_(3)-overset(OH)overset(|)(C)=CH-overset(O)overset(||)(C)-CH_(3)`

A

`I gt II gt III`

B

`III gt II gt I`

C

`II gt I gt III`

D

`II gt III gt I `

Text Solution

Verified by Experts

The correct Answer is:
B
III is more stable due to the presence of conjugation and intramolecular H-bonding .
Promotional Banner

Topper's Solved these Questions

  • ALDEHYDES, KETONES & CARBOXYLIC ACIDS

    NARAYNA|Exercise EXERCISE -4|30 Videos

  • ALDEHYDES, KETONES & CARBOXYLIC ACIDS

    NARAYNA|Exercise CHECK YOUR GRASP|6 Videos

  • ALDEHYDES, KETONES & CARBOXYLIC ACIDS

    NARAYNA|Exercise EXERCISE -II (H.W.)|25 Videos

  • ALCOHOLS, ETHERS, PHENOL

    NARAYNA|Exercise Assertion Reaosn|10 Videos

  • AMINES & DIAZO COMPOUNDS

    NARAYNA|Exercise Subjective type Q.|13 Videos

Similar Questions

Explore conceptually related problems

CH_(3)-overset(O)overset(||)(C)-CH_(2)-Br

CH_(3)-overset(Cl)overset(|)(CH)-overset(O)overset(||)(C)-CH_(3)

The IUPAC name of CH_(3)-overset(O)overset(||)(C)-CH_(2)-overset(OH)overset(|)(CH)-CHO is

The molecules CH_(3)-overset(O)overset(||)C-CH_(2) -overset(O)overset(||)C-O-C_(2)H_(5) and CH_(3)-overset(OH)overset(|)C-OH-overset(O)overset(||)C-O-C_(2)H_(5) are

CH_(3)overset(O)overset(||)"CCH"_(2)overset(O)overset(||)COCH_(3) is reduced to CH_(3)underset(OH)underset("| ")"CH"CH_(2)overset(O)overset(||)COCH_(3) by

Write the IUPAC name of the following compound : H_(3)C-overset(Cl)overset(|)(CH)-CH_(2)-overset(O)overset(||)(C)-CH_(3)

NARAYNA-ALDEHYDES, KETONES & CARBOXYLIC ACIDS-EXERCISE -III
  1. When is reduced with, the compound obtained will be

    Text Solution

    |

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

    Text Solution

    |

  3. Which one of the following on treatment with 50% aqueous sodium hydrox...

    Text Solution

    |

  4. Reduction of aldehydes and ketones into hydrocarbons using zinc amalga...

    Text Solution

    |

  5. The product formed in aldol condensation is

    Text Solution

    |

  6. Which of the following presents the correct order of the acidity in th...

    Text Solution

    |

  7. Acetophenone when reacted with a base, C(2)H(5)ONa, yields a stable...

    Text Solution

    |

  8. In a set of reactions m-bromobenzoic acid gave a product D. Identify t...

    Text Solution

    |

  9. In the following reactions, (a) H(3)C-overset(CH(3))overset("| "...

    Text Solution

    |

  10. Consider the reaction RCHO + NH(2)NH(2) rarr R - CH = N NH(2) What...

    Text Solution

    |

  11. Consider the following reaction The product 'A' is

    Text Solution

    |

  12. Reaction by which benzaldehyde cannot be prepared

    Text Solution

    |

  13. Structure of the compound whose IUPAC name is 3-ethyl-2-hydroxy-4-meth...

    Text Solution

    |

  14. The order of stability of the following tautomeric compounds is (i)....

    Text Solution

    |

  15. Which one is most reactive towards Nucleophilic addition reaction?

    Text Solution

    |

  16. Which of the following will not be soluble in sodium hydrogen carbonat...

    Text Solution

    |

  17. Reaction of carbonyl compound with one of the following reagents invol...

    Text Solution

    |

  18. Which of the the following esters gets hydrolysed most easily under al...

    Text Solution

    |

  19. Treatment of cylcopentanone with with methyl lithium gives which of...

    Text Solution

    |

  20. An organic compound 'X' having molecular formula C(5)H(10)O yield phen...

    Text Solution

    |