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Give the reason. the boiling point of water,ethanol and ethoxyethane are in the reverse order of their relative molecular masses unlike those order of their anologous sulphur compounds,H2S,CC5H5SH, and C2H5SC2

Give the reason. the boiling point of water,ethanol and ethoxyethane are in the reverse order of their relative molecular masses unlike those order of their anologous sulphur compounds,H2S,CC5H5SH, and C2H5SC2

Grade:12th pass

1 Answers

Vikas TU
14149 Points
3 years ago
Dear Student,
In case of sulfur analogs H-Bond is not found in between molecules, where as in case of Oxygen analogs formation of H-Bonds makes the difference.
Strength of intermolecular H-Bond decreases in the manner-
H2O>ethanol>ethoxyethane
 
So, strong H-BOND force surpass the effect of molecular mass and reverses the boiling point order.
Cheers!!
Regards,
Vikas (B. Tech. 4th year
Thapar University)

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