Home
Class 11
CHEMISTRY
Statement - The water pouch of instant...

Statement - The water pouch of instant cold pack for treating athletic injuries breakes when squeezed and `NH_(4)NO_(3)` dissolves lowering the temperature.
Explanation - Addition of non-volatile solute into solvent results into depression of freezing point of solvent.

A

If both A and R are true,andR is the true explanation of A.

B

If both A and R are true,but R is not the true explanation of A.

C

If A is true, but R is false

D

If both A and R are false.

Text Solution

Verified by Experts

The correct Answer is:
b
Promotional Banner

Topper's Solved these Questions

  • THERMODYNAMICS

    PRADEEP|Exercise MULTIPLE CHOICE QUESTION ( BASED ON PRACTICAL CHEMISTRY)|3 Videos

  • THERMODYNAMICS

    PRADEEP|Exercise ASSERTION - REASON TYPE QUESTIONS (TYPE 1)|8 Videos

  • STRUCTURE OF ATOM

    PRADEEP|Exercise Competition Focus (JEE (Main and Advanced)/Medical Entrance (IX. Assertion And Reason Type Questions (Type II))|12 Videos

Similar Questions

Explore conceptually related problems

When solid NH_(4)NO_(3) is dissolved in water at 25^(@)C , the temperature of the solution decreases. What is true about the signs of DeltaH and DeltaS for this process?

STATEMENT-1 : For solution of volatile liquids, the partial vapour pressure of each component in the solution is directly proportional to its mole fraction. STATEMENT-2 : Always there will be lowering of vapour pressure on addition of non-volatile solute to a solvent. STATEMENT-3 : If there is dissociation of non-volatile then the V.P. of solution increases.

Statement Addition of a non-volatile solute causes a depression in vapour pressure. Explanation vapour pressure of a solution is directly proportional to mole fraction of solvent.

PRADEEP-THERMODYNAMICS-ASSERTION - REASON TYPE QUESTIONS (TYPE 2)
  1. Assertion. Heat energy is completely transformed into work during the ...

    Text Solution

    |

  2. Assertion. The temperature of a gas does not change when it undergoes...

    Text Solution

    |

  3. Assertion: The heat absorbed during the isothermal expansion of an ide...

    Text Solution

    |

  4. Assertion. When a real gas expands adiabatically , the decrease in in...

    Text Solution

    |

  5. (A) For reaction 2NH(3)(g)toN(2)(g)+3H(2)(g)," "DeltaHgtDeltaE (R...

    Text Solution

    |

  6. Assertion. ForCO(2) , the ratio of the molar heat capacities ( C(p) //...

    Text Solution

    |

  7. Assertion. The heat of combustion found by using bomb calorimeter give...

    Text Solution

    |

  8. Statement - The water pouch of instant cold pack for treating athlet...

    Text Solution

    |

  9. Assertion: The enthalpy of formation of gaseous oxygen molecules at 29...

    Text Solution

    |

  10. Assertion (A): Heat of neutralisation for both HNO(3) and HCI with NaO...

    Text Solution

    |

  11. Assertion.The bond enthalpy of C-H bondin CH(4) is nearly 416 k J mol^...

    Text Solution

    |

  12. Assertion : Many endothermic reactions which are non- spontaneous on i...

    Text Solution

    |

  13. Assertion (A): Enthalpy of graphite is lower than that of diamond. R...

    Text Solution

    |

  14. Assertion :- Water in liquid state is more stable than ice at room tem...

    Text Solution

    |

  15. Assertion. Chlorine when solidifies doe not have zero entropy even at ...

    Text Solution

    |

  16. Assertion: Molar entropy of vaporization of water is different from et...

    Text Solution

    |

  17. Assertion : A process for which DeltaS(syst) as well as DeltaHgt0 , p...

    Text Solution

    |

  18. Assertion (A): Decrease in free energy causes spontaneous reaction ...

    Text Solution

    |

  19. Assertion. At 298 K and 1 atm pressure, solids do not have any entropy...

    Text Solution

    |