JEE Main 2017 · 2 Apr · Shift 1 · Chemistry Q58

← JEE Main 2017 · 2 Apr · Shift 1

ChemistrySingle correct+4 / -1Question 58 of 90

3-Methyl-pent-2-ene on reaction with HBr in presence of peroxide forms an addition product. The number of possible stereoisomers for the product is :

Two

Four

Six

Zero

Answer and worked solution

Official answer: B

Anti-Markovnikov addition (peroxide effect) puts Br on C2: $\ce{CH3-CHBr-CH(CH3)-CH2CH3}$ . C2 and C3 are both stereocentres, giving $2^2=4$ stereoisomers.

Topics:Optical isomerism and chirality Alkenes

← Previous question Next question →

JEE Main 2017 · 2 Apr · Shift 1, Chemistry question 58