Which of the following alkanes exists in liquids state at room temperature?
A
CH4
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B
C2H6
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C
C4H10
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D
C5H12
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Solution
The correct option is CC5H12 Methane,ethane,propane and butane are gases at room temperature while higher alkanes from pentane till C-17 alkanes are liquids;and after C-18 they are solids.