Home
Class 11
CHEMISTRY
Absolute alcohol cannot be obtained by s...

Absolute alcohol cannot be obtained by simple fractional distillation because

A

pure `C_(2)H_(5)OH` is unstable

B

`C_(2)H_(5)OH` forms hydrogen bonds with water

C

boiling point of `C_(2)H_(5)OH` is very close to that of water

D

constant boiling azeotropic mixture is formed with water

Text Solution

Verified by Experts

The correct Answer is:
D

The components of an azeotropic mixture are separated by special method, i.e., azeotropic distillation. The simple fraction which distils at 337.8 K is a ternary azeotrope consisting of water, some alcohol and benzene.
Promotional Banner

Topper's Solved these Questions

  • ORGANIC CHEMISTRY : SOME BASIC PRINCIPLES - PART III (PURIFICATION AND CHARACTERISATION OF ORGANIC COMPOUNDS)

    BRILLIANT PUBLICATION|Exercise LEVEL-II|40 Videos
  • ORGANIC CHEMISTRY : SOME BASIC PRINCIPLES - PART III (PURIFICATION AND CHARACTERISATION OF ORGANIC COMPOUNDS)

    BRILLIANT PUBLICATION|Exercise LEVEL-II (ASSERTION-REASON TYPE)|15 Videos
  • ORGANIC CHEMISTRY : SOME BASIC PRINCIPLES - PART II (ISOMERISM AND REACTION MECHANISM)

    BRILLIANT PUBLICATION|Exercise LEVEL-II (ASSERTION-REASON TYPE)|20 Videos
  • ORGANIC CHEMISTRY: BASIC PRINCIPLES - PART I (NOMENCLATURE)

    BRILLIANT PUBLICATION|Exercise LEVEL-II |41 Videos

Similar Questions

Explore conceptually related problems

Absolute alcohol cannot be obtained by fractional distillation because

Which are the products obtained from fractional distillation of petroleum?

Justify the following statements. i. Water mixed with formic acid cannot be separated by fractional distillation. ii. o -nitrophenol is steam volatile while p-nitrophenol is not. iii. Freshly prepared FeSO_4 solution is insisted during the test for nitrogen in Lassaignes test. iv. Copper spiral is used in the apparatus for Dumas method.

The alcohol that cannot be prepared by the reduction of a ketone is

Which of the following pairs of solutions can be separated into its pure components by fractional distillation

Absolute Alcohol is prepared by : Vaccum distilation, Azeotropic distilation, Steam distilation, none of these

Write the products obtained by the distillation of coal.

BRILLIANT PUBLICATION-ORGANIC CHEMISTRY : SOME BASIC PRINCIPLES - PART III (PURIFICATION AND CHARACTERISATION OF ORGANIC COMPOUNDS) -LEVEL-II (ASSERTION-REASON TYPE)
  1. Absolute alcohol cannot be obtained by simple fractional distillation ...

    Text Solution

    |

  2. Assertion : Sulphur present in an organic compound can be estimated qu...

    Text Solution

    |

  3. Assertion : Simple distillation can help in separating a mixture of pr...

    Text Solution

    |

  4. Assertion : Oils are purified by steam distillation. Reason : The co...

    Text Solution

    |

  5. Assertion : NH(2)-oversetoverset(S)("||")(C)-NH(2) gives red colour in...

    Text Solution

    |

  6. Assertion : Lassaigne's tests is not shown by diazonium salts. Reaso...

    Text Solution

    |

  7. Assertion : In organic layer test, Cl(2) water is added to the sodium ...

    Text Solution

    |

  8. Assertion : Mixed melting point can be used to test the purity of an o...

    Text Solution

    |

  9. Assertion : Impure glycerine is purified by vacuum distillation. Rea...

    Text Solution

    |

  10. Assertion : Criteria of purity of an organic liquid is its boiling poi...

    Text Solution

    |

  11. Assertion : Glycerol is purified by distillation under reduced pressur...

    Text Solution

    |

  12. Assertion : Paper chromatography is a type of partition chromatography...

    Text Solution

    |

  13. Assertion : Components of a mixture of red and blue inks can be separa...

    Text Solution

    |

  14. Assertion : A mixture of o-nitrophenol and p-nitrophenol can be separa...

    Text Solution

    |

  15. Assertion : Ethanol and water mixture cannot be completely separated b...

    Text Solution

    |

  16. Assertion : Nitrogen cannot be estimated in nitrobenzene by Kjeldahl's...

    Text Solution

    |