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A solution prepared by dissolving 0.8gm ...

A solution prepared by dissolving 0.8gm of naphthalene in 100g of `C Cl_4` has a boiling point elevation of `0.4^@C`. A 1.24 g of an un known solute in same amount of `C Cl_4` produced boiling point elevation of `0.62^@C`, then molar mass of un-known solute is

A

25g

B

50g

C

75g

D

128g

Text Solution

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The correct Answer is:
D
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