Number of optical isomers possible for 2-chlorobutane ____
Answer: 2
Solution
2-Chlorobutane, CH3-CHCl-CH2-CH3, has one carbon (C-2) bonded to four different groups (H, Cl, CH3, C2H5) — one chiral (stereogenic) centre. With n=1 chiral centre, the number of optical isomers is 2n=2 (a pair of enantiomers).
JEE Main · 2024 · 01 Feb 2024 · Shift 1 · Integer answer