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A teacher one day pointed out to his stu...

A teacher one day pointed out to his students the peculiar fact that water is a unique liquid which freezes exactly at `0^(@)C`.and boils exactly at `100^(@)C`. He asked the students to find the correct statement based on this fact.

A

water dissolves anything however sparingly the dissolution may be

B

water is a polar molecule

C

boiling and freezing temperatures of water were used to define a temperature scale

D

liquid water is denser than ice

Text Solution

Verified by Experts

The correct Answer is:
C
The scaling of zero degree centigrade is based on this fact.
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NIKITA PUBLICATION-SOLUTION & COLLIGATIVE PROPERTIES -Questions from Competition Exam
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  2. The molal freezing point for water is 1.86^(@)C mol^(-1). If 342g of c...

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  3. The BaCl(2) ionises to an extent of 80% in aqueous solution, the value...

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  4. Equal masses of methane and oxygen are mixed in an empty container at ...

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  5. An aqueous solution is 1.00 molal in KI. Which change will cause the v...

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  6. A solution of sucrose (molar mass = 342 "g mol"^(-1)) has been prepare...

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  7. If sodium sulphate is considered to be completely dissociated into cat...

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  8. If 10^(-4) dm^(3) of water is introduced into a 1.0 dm^(3) flask to 30...

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  9. On mixing, heptane and octane form an ideal solution. At 373K the vapo...

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  10. K(b) for water is 0.52 K/m. Then, 0.1 m solution of NaCl will boil app...

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  11. 138 g of ethyl alcohol is mixed with 72 g of water. The ratio of mole ...

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  12. Two solutions of a substance (non-electroyte) are mixed in the followi...

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  13. 20 g of a binary electrolyte (Molecular mass =100) are dissolved in 50...

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  14. Which one of the following in the ratio of the lowering of V.P. of 0.1...

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  15. A 0.1 molal aqueous solution of a weak acid is 30% ionized. If K(f) fo...

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  16. 200 mL of an aqueous solution of a protein contains its 1.26g. The osm...

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  17. The freezing point depression constant for water is 1.86^(@)K Kgmol^(-...

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  18. The van't Hoff factor i for a compound which undergoes dissociation in...

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  19. Mole fraction of a solution in 1.00 molal aqueous solution is

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  20. The degree of dissociation (alpha) of a weak electrolyte A(x)B(y) is ...

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  21. Ethylene glycol is used as an antifreeze in a cold climate. Mass of et...

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