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 DC5H12 At room temperature, alkanes from C-1to C-4 are gases and from C- 5 to C- 16 are liquids . Therefore penatne(C5H12)is a liquid.