Home
Class 12
CHEMISTRY
Assertion: Azeotropic mixtures are form...

Assertion: Azeotropic mixtures are formed only by non-ideal solutions and they may have boiling points either greater than both the components or less than both the components.
Reason: The composition of the vapour phase is same as that of the liquid phase of an azeotropic mixture.

A

Both Assertion and Reason are true and Reason is the correct explanation of Assertion

B

Both Assertion and Reason are true and Reason is not the correct explanation of Assertion

C

Assertion is true but Reason is false

D

Both Assertion and Reason are false

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • SOLUTIONS

    AAKASH SERIES|Exercise Objective Exercise -3 (PREVIOUS NEEET/AIPMT )|24 Videos

  • SOLIDS STATE

    AAKASH SERIES|Exercise PRACTICE EXERCISE|63 Videos

  • STATES OF MATTER

    AAKASH SERIES|Exercise ADDITIONAL PRACTICE EXERCISE -PRACTICE SHEET (ADVANCED) (LINKED COMPREHENSION TYPE QUESTIONS) (PASSAGE- IV)|2 Videos

Similar Questions

Explore conceptually related problems

An azeotropic solution of two liquids has a boiling point higher than either of the boiling points of the liquids when it

An azeotropic solution of two liquids has a boiling point lower than either of them if it

Assertion: The vapour pressure of mixture of ethanol and water is greater than pure water. Reason: Ethanol & water form an azeotropic mixture.

Which of the following statements are correct (a) the boiling point of a solution is greater than pure solvent (b) the temperature where the vapour pressure of liquid equals to atmospheric pressure is called its boiling point (c) the vapour pressure of pure solvent is less than the vapour pressure of solution containing non volatile solute. (d) the temperature of liquid remained in the container after evaporation is more than before the evaparation

Heptane and Octane form an ideal solution. At 373 K the vapour pressure of the two liquid components are 105.2" kP"_(a) and 46.8" kP"_(a) respectively. What will be the vapour pressure of a mixture of 26.0 g heptane and 35g of octane ?

Two liquids A and B with vapour pressures 400mm Hg and 600mm Hg respectively formed a binary ideal liquid mixure shown in the following diagram . (Temepature =constant) Which of the following curves correctly represents the above said mixture with varied composition . (v.P=vapour pressure T_(b) =boiling point)

In a mixture of closely related liquids (such as benzene and toluence), the Roult's law states that the ratio P_(A) is proportional to the mole fraction of A in the liquid, P_(A)x_(A) . Mixtures that obey the law throughout the composition ranges from pure A to pure B are called ideal solutions . In ideal solution the solute also obeys Roult's law . Then the total pressure is given by P_("total")=P_(A)^(0)x_(A)+P_(B)^(0)x_(B) Benzene and toluene froms nearly an ideal solution in which the mole fraction of the benzene is 0.4 . If v.p. of pure benzene is 40 mmHg and toluene is 30 mmHg at a given temperature , then what is the fraction of toluene in the vapour phase?

An orbital is designated by certain values of first three quantum numbers (n, l and m) and according to Pauli.s exclusion principle, no two electrons in a atom can have all the for quantum numbers equal. N, l and m denote size, shape and orientation of the orbital. The permissible values of n are 1,2,3.... prop while that of 1 are all possible integral values from 0 to n-n. Orbitals with same values of n and 1 but different values of m (where m can have any integral values from 1 to +1 including zero) are of equal energy and are called degenerate orbitals. However degeneracy is destroyed in homogeneous external magnetic field due to different extent of interaction between the applied field and internal electronic magnet of different orbitals differing in orientations. In octahedral magnetic field external magnetic field as oriented along axes while in tetrahedral field the applied field actas more in between the axes than that on the axes themselves. For 1=0, 1,2,3,...., the states (called sub-shells) are denoted by the symbol s,p,d,f.....respectively. After f, the subshells are denoted by letters alphabetically 1 determines orbital angular motion (L) of electron as L = sqrt(l(l+1))(h)/(2pi) ON the other hand, m determines Z-component of orbital angular momentum as L_(Z) = m((h)/(2pi)) Hund.s rule states that in degenerate orbitals electrons do not pair up unless and until each each orbitals has got an electron with parallesl spins Besides orbital motion,an electron also posses spin-motion. Spin may be clockwise and anticloskwise. Both these spin motions are called two spins states of electrons characterized by spin Q.N (s) : s = +(1)/(2) and = -(1)/(2) respectively The sum of spin Q.N. of all the electrons is called total spin(s) and 2s+1 is called spin multiplicity of the configuration as a whole. The spin angular momentum of an electron is written as L_(s) = sqrt(s(s+1))(h)/(2pi) According to Hund.s rule, the distribution of electron within the various orbitals of a given sub-shell is one which is associated with

AAKASH SERIES-SOLUTIONS -Objective Exercise -4
  1. Assertion: Osmotic pressure is a colligative property. Reason: Osmo...

    Text Solution

    |

  2. Assertion:Vapour pressure of water is less than 373K at 1.013 bar. R...

    Text Solution

    |

  3. Assertion: Azeotropic mixtures are formed only by non-ideal solutions...

    Text Solution

    |

  4. Assertion: In diffusion the flow of solvent molecules occur in one dir...

    Text Solution

    |

  5. Assertion: If blood cells are placed in pure water, they swell and bur...

    Text Solution

    |

  6. Assertion:Reverse osmosis is used in the desalination of sea water. ...

    Text Solution

    |

  7. Assertion:If more and more solute is added to a solvent, the freezing ...

    Text Solution

    |

  8. Assertion:The molecular mass of acetic acid in benzene is more than th...

    Text Solution

    |

  9. Assertion:NaCl in water and organic acids in benzene show abnormal mol...

    Text Solution

    |

  10. Assertion:Solutions of identical concentrations always have same osmat...

    Text Solution

    |

  11. Assertion:During the formation of solution entropy of system increases...

    Text Solution

    |

  12. Assertion: Isotonic solutions do not show osmosis. Reason: Isotonic ...

    Text Solution

    |

  13. Assertion: The relative lowering of vapour pressure for CH3COOH + H2O ...

    Text Solution

    |

  14. Assertion: If two liquids on mixing form a solution with liberation of...

    Text Solution

    |

  15. Assertion:When methanol is added to water boiling point of water decre...

    Text Solution

    |

  16. Assertion:Camphor is used as solvent in the experi mental determinatio...

    Text Solution

    |

  17. Assertion:Addition of salt decreases the freezing point of water. R...

    Text Solution

    |

  18. Assertion:Ethylene glycol is added to water and used as antifreeze in ...

    Text Solution

    |

  19. Assertion:Osmotic pressure of 0.1M glucose is less than 0.1M MgCl2 sol...

    Text Solution

    |

  20. Assertion:Ideal solutions follow Raoult's law. Reason: DeltaH and D...

    Text Solution

    |