The false statement regarding alkane is

• A

  this does not perform polymerization reaction
• Correct answer
  B

  this does not gives elimination reaction
• C

  it does not disappear the colour of dilute $\mathrm{KMnO}_{4}$ solution
• D

  it does not decolourise bromine water

Solution

Alkanes show elimination reactions. Higher alkanes eliminate hydrogen and lower alkanes on heating in the absence of air at $500-700^{\circ} \mathrm{C}$.

Hence, the correct answer is option: 'B'.