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In the solubility of liquid solutions:...

In the solubility of liquid solutions:

A

The solubility of a solute always increases with increasing tempearture

B

There is no noticeable temperature changes

C

A positive enthalpy of solutions is when the system gains thermalenergy on becoming saturated at the fixed temperature

D

A positive heat of solution means heat is absorbed as the solute dissolve to form the saturated solution

Text Solution

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The correct Answer is:
C
`"Solvent"I+"Solvent"IIhArr"Solution", DeltaH=+"ve"`
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P BAHADUR-MOLE AND EQUIVALENT CONCEPT-Exercise (3A) Objective problems:
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  2. The mole fraction of the solute in one molal aqueous solution is:

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  3. In the solubility of liquid solutions:

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  4. After equal volume of 0.10 M solutions of (NH(4))(2)SO(4) and Ba(OH)(2...

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  5. Chlorophyll, a green colouring matter contains 2.68% Mg. The number of...

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  6. 16g of SO(x) occupies 5.6 litre at STP. Assuming ideal gas nature, the...

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  7. The radius of a water molecule having density 1.0g mL^(-1) is :

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  8. Number of positive ions in 1.45 mole of K(2)SO(4) are:

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  9. Equal moles of H(2)O and NaCl are present in a solution. The molality ...

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  10. The weight of 1 xx 10^(22) molecules of CuSO(4). 5H(2)O is

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  11. Weight of one atom an element is 6.44 xx 10^(-23) g. Calculate g atom ...

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  12. A compound contains 10^(-2)% of phosphorus. If atomic mass of phosphor...

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  13. Total number of electrons present in 11.2 litre of NH(3) at STP are:

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  14. Al(2)(SO(4))(3).XH(2)O has 8.1% aluminium by mass. The value of X is:

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  15. One litre of N(2) and 7//8 litre of O(2) under identical conditions of...

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  16. Total number of atoms present in 1.0 cm^(3) of solid urea (density 0.3...

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  17. The density of liquid (mol.wt. = 70) is 1.2 g mL^(-1). If 2 mL of liqu...

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  18. The atomic weight of a triatomic gas is a. The correct formula for the...

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  19. A solution required [OH^(-)]=2M. If degree of dissociation of Mg(OH)(2...

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  20. In a compound A(x)B(y):

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