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Q.

If the boiling point of ethanol (molecular weight = 46) is 78°C, the boiling point of diethyl ether (molecular weight = 74) is

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a

34°C

b

100°C

c

78°C

d

86°C

answer is B.

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Detailed Solution

  • The boiling point of ethanol is 78 °C, and because ethanol contains intermolecular hydrogen bonds, its B.P. is higher than that of diethyl ether. 

        Boiling point ether < ethanol.
 Hence the correct option (B).78°C

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