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What happens to freezing point of benzen...

What happens to freezing point of benzene when nephthalens is added ?

A

Increases

B

Decreases

C

Remains unchanged

D

First decreases and then increases

Text Solution

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The correct Answer is:
B
Freezing point of a pure solvent decreases on addition of solute.
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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-SOLUTIONS AND COLLIGATIVE PROPERTIES -Exercise 1 (Types of Solutions and Concentration of Solutions)
  1. The solution which shows large positive deviation from Raoult's law fo...

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  2. 1xx10^(3)m" solution of Pt "(NH(3))(4)Cl(4) " in "H(2)O shows depress...

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  3. What happens to freezing point of benzene when nephthalens is added ?

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  4. A 5.25% solution of a substance is isotonic with a 1.5% solution of ur...

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  5. The difference between the boiling point and freezing point of an aque...

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  6. A 6% of urea is isotonic with

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  7. Which of the following is not a colligative property?

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  8. In an osmotic pressure measurement experiment, a 5% solution of compou...

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  9. A solution of urea boils at 100.18^(@)C at the atmospheric pressure. ...

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  10. The molal elevation constant of water =0.52 K m^(-1). The boiling poin...

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  11. A solution containing 4g of polyvinyl chloride polymer in 1 L of dioxa...

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  12. If alpha is the degree of dissociation of Na(2)SO(4) the van't Hoff's ...

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  13. At 25^(@)C, the highest osmotic pressure is exhibited by 0.1 M solutio...

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  14. Calculate the molal depression constant of a solvent which has freezin...

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  15. The freezing point of 1% of lead nitrate solution in water will be :

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  16. The relative lowering of vapour pressure of an aqueous solution contai...

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  17. KBr is 180% dissociated in aqueous solution of 0.5m concentration. (...

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  18. The vapour pressure of water at 23^(@)C is 19.8 mm of Hg 0.1 mol of gl...

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  19. Benzoic acid is dissolved in benzene, van't Hoff factor will be

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  20. Mark the correct option for the K(f) . I. K(f) depends on nature of...

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