Question

11. Which of the following alkyl halides will undergo the fastest SN2 reaction? < <===- ய

Answer 1

SN² Reaction Prumany dy alkyl halides prefer to undergo reactions more than tertiary akkyl halides. Secondary and ause of less sterric hinderence experience approaching nucleophile, Hence for primary> Secondary > Tertiary (Alkyl halider) the order of preference to undugo methy SN² reaction . Appoximate Rate Generally) Order. (if CN attack) RATE Nat :( = N; CH3 -CN ~1000 Methyl He- Be Primary w or wat een wono decondary in water i n s Tertiary Nat ReN x 2000 & onder methyl > Primary> Secondary? CS Nat E=N: Loool (Rate) Tertiary.

In Geven Alkyl halides Primary Cheast Alkyl bromine - Br sterric hinderence) 2 carbons (secondary) Alkyl bromide Tertiary Alkyl bromide Double bond increasing sternic & Be Secondary Alkyl bromide ao option ® is correct - Br undergo fastest vn? Reaction . Scanned with CamScanner