which of the following given organic compounds, exists as a liquid at room temperature :
A
C2H5
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B
C2H4
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C
C2H2
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D
C2H5OH
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E
C3H8
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Solution
The correct option is DC2H5OH Ethanol forms inter-molecular hydrogen bonding with other molecules, and the dissociation energy becomes high and hence it's liquid at room temperature.