MCQ
Alkane which is liquid at room temperature is :
  • A
    $ \mathrm{C}_2 \mathrm{H}_6$
  • B
    $ \mathrm{C}_3 \mathrm{H}_8 $
  • C
    $\mathrm{C}_4 \mathrm{H}_{10} $
  • $\mathrm{C}_8 \mathrm{H}_{18} $

Answer

Correct option: D.
$\mathrm{C}_8 \mathrm{H}_{18} $
Alkane from $\mathrm{C}_1-\mathrm{C}_4$ are gases.
Alkane from $\mathrm{C}_5-\mathrm{C}_{17}$ are liquids.
Alkane from $\mathrm{C}_{18}$ onwards is solids.

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