Home
Class 12
CHEMISTRY
An aqueous solution freezes at -0.186^...

An aqueous solution freezes at
`-0.186^(@)C (K_(f)=1.86^(@)` ,`K_(b)=0.512^(@))`. What is the elevation in boiling point?

A

`0.186`

B

`0.512`

C

`(0.512)/(1.86)`

D

`0.0512`

Text Solution

Verified by Experts

The correct Answer is:
D
`DeltaT_(f) = k_(f) xx m` or `m = (Delta T_(f))/(k_(f)) = (0.186)/(1.86) = 0.1`
`:. DeltaT_(b) = k_(b) xx m = 0.512 xx 0.1 = 0.0512^(@)`
Promotional Banner

Topper's Solved these Questions

  • SOLUTIONS

    DINESH PUBLICATION|Exercise OBJECTIVE TYPE MCQs|47 Videos

  • SOLUTIONS

    DINESH PUBLICATION|Exercise Paragraph 1|1 Videos

  • SOLUTIONS

    DINESH PUBLICATION|Exercise ULTIMATE PREPARATORY PACKAGE|10 Videos

  • SOLID STATE

    DINESH PUBLICATION|Exercise Brain storming|10 Videos

  • SOME BASIC CONCEPTS OF CHEMISTRY

    DINESH PUBLICATION|Exercise ULTIMATE PREPARATORY PACKAGE|20 Videos

Similar Questions

Explore conceptually related problems

Elevation in boiling point of an aqueous solution of a non-electroluyte solute is 2.01^(@) . What is the depression in freezing point of the solution ? K_(b)(H_(2)O)=0.52^(@)mol^(-1)kg K_(f)(H_(2)O)=1.86^(@)mol^(-1)kg

An aqueous solution of NaCI freezes at -0.186^(@)C . Given that K_(b(H_(2)O)) = 0.512K kg mol^(-1) and K_(f(H_(2)O)) = 1.86K kg mol^(-1) , the elevation in boiling point of this solution is:

A 0.01m aqueous solution of K_(3)[Fe(CN)_(6)] freezes ar -0.062^(@)C . What is the apparent percentage of dissociation? [K_(f) for water = 1.86]

DINESH PUBLICATION-SOLUTIONS -REVISION QUESTION
  1. Which of the following will have the highest boiling point at 1 atm pr...

    Text Solution

    |

  2. What will be the molality of solution having 18 g of glucose ...

    Text Solution

    |

  3. An aqueous solution freezes at -0.186^(@)C (K(f)=1.86^(@) ,K(b)=0.51...

    Text Solution

    |

  4. Which one of the following is a colligative property?

    Text Solution

    |

  5. An ideal solution was obtained by mixing methanol and ethanol. If the ...

    Text Solution

    |

  6. The freezing point of a solution prepared from 1.25 g of non-electroly...

    Text Solution

    |

  7. The relative lowering of vapour pressure is equal to the mole fraction...

    Text Solution

    |

  8. The molal depression constant for water is 1.86^(@)C. The freezing poi...

    Text Solution

    |

  9. A 5% solution of cane sugar (molecular weight =342) is isotonic with a...

    Text Solution

    |

  10. The vapour pressure of a solvent decreased by 10 mm of Hg when a non-v...

    Text Solution

    |

  11. Solutions having the same osmotic pressure are called:

    Text Solution

    |

  12. The molar solution of sulphuric acid is equal to

    Text Solution

    |

  13. If 100mL of 1N sulphuric acid were mixed with 100mL of 1N sodium hydro...

    Text Solution

    |

  14. How many grams of a dibasic acid (Mol. Wt. =200) should be present in ...

    Text Solution

    |

  15. The vapour pressure of pure benzene at a certain temperature is 640 mm...

    Text Solution

    |

  16. The rise in boiling point of a solution containing 1.8g glucose in 100...

    Text Solution

    |

  17. Number of moles of a solute per kilogram of a solvent is called

    Text Solution

    |

  18. The osmotic pressure of one molar solution at 27^(@)C is

    Text Solution

    |

  19. For a 1 molar solution of NaCI in water at 25^(@)C and 1 atm pressure

    Text Solution

    |

  20. 1.8 g of fructose (C(6)H(12)O(6)) is added to 2 kg of water. The freez...

    Text Solution

    |