Home
Class 12
CHEMISTRY
The acid strength of active methylene gr...

The acid strength of active methylene group in A) `CH_3COCH_3COOC_2H_5` B) `CH_3COCH_2COCH_3`
C) `C_2H_5 OO C CH_2COOC_2H_5` decreases as

A

` a gt c gt b`

B

`a gt b gt c `

C

`b gt a gt c `

D

`c gt a gt b`

Text Solution

Verified by Experts

The correct Answer is:
B
The acid strength of active methylene group is
`H_3C -overset(O)overset(||)C-CH_2-overset(O)overset(||)C-CH_3 gt H_3C-overset(O)overset(||)C-CH_2-overset(O)overset(||)C-OC_2H_5 gt H_5C_2-O-overset(O)overset(||)C-CH_2-overset(O)overset(||)C-OC_2H_5`
Because ester grop has O-R group which decreases electron withdrawing nature of carbonyl group.
Promotional Banner

Topper's Solved these Questions

  • K-CET-CHEMISTRY 2016

    SUNSTAR PUBLICATION|Exercise Multiple Choice Questions|60 Videos

  • K-CET-CHEMISTRY-2017

    SUNSTAR PUBLICATION|Exercise MULTIPLE CHOICE QUESTION|60 Videos

Similar Questions

Explore conceptually related problems

The acid strength of active methylene group in : (i) CH_(3)COCH_(2)COOC_(2)H_(5) (ii) CH_(3)COCH_(2)COCH_(3) (iii) C_(2)H_(5)OOCCH_(2)COOC_(2)H_(5) decreases as :

Give the IUPAC name of C_2H_5COCH_3 .

Name the functional group present in (a) CH_3CHO " " (b) C_2H_5COOH

The correct IUPAC name of the compound CH_(3)CH(C_(2)H_(5))CH_(2)CH(OH)CH_(3) is :

One litre of 2 M acetic acid is mixed with one litre of 2 M ethyl alcohol to form ester as : CH_(3) COOH+C_(2)H_(5)Ohrarr CH_(3)COOC_(2)H_(5)+H_(2)O The decrease in initial reaction rate if each solution is diluted by an equal volume of water would be :

SUNSTAR PUBLICATION-K-CET-CHEMISTRY-2014-MULTIPLE CHOICE QUESTIONS
  1. Conversion of oxygen into ozone is non-spontaneous at

    Text Solution

    |

  2. Density of carbon monoxide is maximum at

    Text Solution

    |

  3. The acid strength of active methylene group in A) CH3COCH3COOC2H5 B) C...

    Text Solution

    |

  4. A metallic oxide reacts with water to from its hydroxide, hydrogen per...

    Text Solution

    |

  5. X underset("(Reductive)") overset("Ozonolysis")to Y + Z Y can be obt...

    Text Solution

    |

  6. Gold sol is not a

    Text Solution

    |

  7. Carbocation as an intermediate is likely to be formed in the reaction ...

    Text Solution

    |

  8. For an ideal binary liquid mixture

    Text Solution

    |

  9. For hydrogen - oxygen fuel cell at one atm and 298 K H(2(g)) + (1)...

    Text Solution

    |

  10. Which one of these is not known?

    Text Solution

    |

  11. The correct statement is

    Text Solution

    |

  12. P underset(2.H3O^(+))overset(1. CH3MgBr) to R overset(1. dil. NaOH)und...

    Text Solution

    |

  13. When CH2 = CH -O - CH2 - CH3 reacts with one mole of HI , one of the ...

    Text Solution

    |

  14. 0.44 g of a monohydric alcohol when added to methylmagnesium iodide in...

    Text Solution

    |

  15. The IUPAC name of 'B' is

    Text Solution

    |

  16. For Freundilich isotherm a graph of log""(x)/(m) is plotted against lo...

    Text Solution

    |

  17. A plot of (1)/(T) Vsk for a reaction gives the slope - 1 xx 10^(4)K. T...

    Text Solution

    |

  18. The IUPAC name of the complex ion formed when gold dissolves in aquare...

    Text Solution

    |

  19. The correct sequence of reactions to be performed to convert benzene i...

    Text Solution

    |

  20. Y is

    Text Solution

    |