The number of stereoisomer possible for the following compound is $\mathrm{CH}_{3}-\mathrm{CH}=\mathrm{CH}-\mathrm{CH}(\mathrm{Br})-\mathrm{CH}_{2}-\mathrm{CH}_{3}$

• A

  2
• B

  3
• Correct answer
  C

  4
• D

  8

Solution

$\mathrm{n}=2$ [No. of stereogenic area] Total stereoisomer $=2^{\mathrm{n}}$ [When symm. is/are absent] Total stereo isomer $=2^{2}=4$

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