Home
Class 12
CHEMISTRY
Why is ester hydrolysis slow iin the beg...

Why is ester hydrolysis slow iin the beginning but is fast after sometime ?

Text Solution

Verified by Experts

In the hydrolysis of ester, carboxylic acid formed in the reaction acts as autocatalyst. Thus the reaction is slow in the begining and becomes faster after some time due to the formation of acid which acts as catalyst.
Promotional Banner

Topper's Solved these Questions

  • SURFACE CHEMISTRY

    AAKASH SERIES|Exercise SUBJECTIVE EXERCISE - 1 (SHORT ANSWER QUESTIONS)|5 Videos

  • SURFACE CHEMISTRY

    AAKASH SERIES|Exercise SUBJECTIVE EXERCISE - 1 (VERY SHORT ANSWER QUESTIONS)|8 Videos

  • SURFACE CHEMISTRY

    AAKASH SERIES|Exercise EXERCISE - 5.2|35 Videos

  • STOICHIOMETRY

    AAKASH SERIES|Exercise PRACTICE SHEET (ADVANCED) (INTEGER TYPE QUESTION)|2 Videos

  • VA GROUP ELEMENTS

    AAKASH SERIES|Exercise PRACTICE EXERCISE|51 Videos

Similar Questions

Explore conceptually related problems

Why the reaction between nitric acid and copper is slow in the beginning but fast after some time?

When KMnO_4 is added to oxalic acid, the decolourisation is slow in the begining but becomes instantaneous after sometime because

A balloon when kept in the sun,burst after sometime . Why ?

Why do silver jewellery, tarnish black after sometime ?

In a pesudo first order hydrolysis of ester in water, the following results are obtained Calculate the averagte rate of reaction between the time inverval 30 to 60 s.

If we add some table salt to water taken in a glass tumbler and stir with a spoon, we find no salt after sometime. Does the level of water change ? If not, why not ?

The initial concentration of ethyl acetane is 0.85 mol L^(-1) . Following the acid catalysed hydrolysis the , concentrations of ester after 30 min and 60 min of the reaction are respectively 0.8 and 0.754 mol L^(-1) . Calculate the rate constant and pseudo rate constant.

What do you observe by cutting an apple after sometime ?Why

AAKASH SERIES-SURFACE CHEMISTRY-PROBLEMS
  1. Per two gram of charcoal, a gas is adsorbed by 0.1g and 0.2g at 10 tor...

    Text Solution

    |

  2. In Langmuir adsorption isotherm, what is the slope and Y-intercept?

    Text Solution

    |

  3. The curve showing variation of x/m with temperature is inverted 'V' sh...

    Text Solution

    |

  4. Why is ester hydrolysis slow iin the beginning but is fast after somet...

    Text Solution

    |

  5. What role does adsorption play in heterogenous catalysis ?

    Text Solution

    |

  6. Why is it necessary to remove CO when ammonia is obtained by Haber's p...

    Text Solution

    |

  7. How to save a patient suffering from kidney failure?

    Text Solution

    |

  8. Is it possible to know the size and shape of colloidal particles by us...

    Text Solution

    |

  9. Gold numbers of four protective colloids A, B, C and Dare 0.5, 0.01,0....

    Text Solution

    |

  10. One gram of charcoal adsorbs 100ml of 0.5M CH(3)COOH to form a monolay...

    Text Solution

    |

  11. For coagulation of 10ml of a positive sol, the volumes of IM each NaCl...

    Text Solution

    |

  12. Tyndall effect is observed during the projection in a cinema theatre. ...

    Text Solution

    |

  13. For the coagulation of 100ml of arsenious sulphide solution, 5ml of IM...

    Text Solution

    |

  14. Ferric chloride forms both positively and negatively charged sols. Exp...

    Text Solution

    |

  15. Comment on artificial rain.

    Text Solution

    |

  16. The coagulation of 100ml gold sol is completely prevented by adding 0....

    Text Solution

    |

  17. Write the difference in the size of sterate anion and stearate micelle...

    Text Solution

    |

  18. How are associated colloids different from multimolecular and macromol...

    Text Solution

    |

  19. How are emulsions useful in digestion ?

    Text Solution

    |

  20. Why gelatin is added to ice cream?

    Text Solution

    |