Home
Class 12
CHEMISTRY
Solute 'X' dimerises in water to the ...

Solute 'X' dimerises in water to the extent of 80 % 2.5 g of 'X' in 100 g of water increases the boiling point by 0.3 `.^(@)C` . The molar mass of 'X' is `[ K_(b=0.52 " K gmol"^(-1))]`

A

65

B

26

C

13

D

52

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • KARNATAKA 2016

    KCET PREVIOUS YEAR PAPERS|Exercise CHEMISTRY|59 Videos

Similar Questions

Explore conceptually related problems

A non -volatile solute.'A' tetramerises in water to the extent of 80% .2.5 g of 'A' in 100 g of water .lower the freezing point by 0.3 ""^(@)C .The molar mass of Å in mol 4^(-1) is ( K_(T) For water =1.86 K kg mol^(-1) )

A certain substance A tetramerizes in water to the extent of 80% . A solution of 2.5 g of A in 100 g of water lowers the freezing point by 0.3^(@)C . The molar mass of A is a. 120 , b. 61 ,c. 60 ,d. 62

6 grams of a substance 'A' dissolved in 100 g of water freezes at - 0.93^(@)C . The molecular mass of 'A' is ( K_(f)=1.86 Km^(-1) ).

If 10.0 g of a non-electrolyte dissolved in 100 g of water lowers the freezing point of water by 1.86^(@)C , the molar mass of the non-electrolyte is ( K_(f)=1.86 Km^(-1) )

A solution of 1.25 g of 'P' in 50 g of water lowers freezing point by 0.3^(@) C . Molar mass of 'P' is 94. K_("(water)") = 1.86 K kg mol^(-1) . The degree of association of ‘P’in water is

KCET PREVIOUS YEAR PAPERS-CHEMISTRY-MCQs
  1. Solute 'X' dimerises in water to the extent of 80 % 2.5 g of 'X...

    Text Solution

    |

  2. Given E(Fe^(+3)//Fe^(+2))^(@)=+0.76V and E(l(2)//l^(-))^(@)=+0.55V. ...

    Text Solution

    |

  3. If an aqueous solution of NaF is electrolyzed between inert elec...

    Text Solution

    |

  4. In which of the following cases a chemical reaction is possible ?

    Text Solution

    |

  5. The time required for 60 % completion of a first order reaction ...

    Text Solution

    |

  6. For an elementry reaction 2A+3B to 4C+D the rate of appearance of...

    Text Solution

    |

  7. The rate constant of a reaction is given by k = Pze^(-Ea//RT) und...

    Text Solution

    |

  8. A sol of Agl is prepared by mixing equal volumes of 0.01 M AgNO(3)...

    Text Solution

    |

  9. During Adsorption of a gas on a solid

    Text Solution

    |

  10. Copper is extracted from copper pyrites by

    Text Solution

    |

  11. Function of potassium ethylxanthate in froth floatation process is...

    Text Solution

    |

  12. Sulphide ore on roasting gives a gas X. X reacts with Cl(2) in ...

    Text Solution

    |

  13. Aqueous solution of a salt (A) forms a dense white precipitate wi...

    Text Solution

    |

  14. Bond angle in PH4+ is higher that in PH(3). Why?

    Text Solution

    |

  15. Incorrectly matched pair is :

    Text Solution

    |

  16. Phosphorus pentachloride

    Text Solution

    |

  17. Identify the set of paramagnetic ions among the following :

    Text Solution

    |

  18. How many moles of acidified K(2)Cr(2)O(7) is required to liberate 6...

    Text Solution

    |

  19. Cu(2)Cl(2) and CuCl(2) in aqueous mdeium

    Text Solution

    |

  20. The co - ordination number of Fe and Co in the complex ions , [ F...

    Text Solution

    |