Among the following, identify the compound that is not an isomer of hexane

• A

  
  
• B

  $\mathrm{CH}_3-\mathrm{CH}_2-\mathrm{CH}_2-\mathrm{CH}_2-\mathrm{CH}_2-\mathrm{CH}_3$
• Correct answer
  C

  
  
• D

  
  

Solution

$\therefore$ above compounds are not isomers

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