Home ā€ŗ MCQs ā€ŗ ECAT Chemistry ā€ŗ Question #817
Back to Questions
ECAT Chemistry QUESTION #817
Question 1
The reactivity order of alkyl halides for a particular alkyl group is:
  • \(\text{F} > \text{Cl} > \text{Br} > \text{I}\)
  • \(\text{I} > \text{Br} > \text{Cl} > \text{F}\)āœ”ļø
  • \(\text{Cl} > \text{Br} > \text{F} > \text{I}\)
  • \(\text{Br} > \text{I} > \text{Cl} > \text{F}\)
Correct Answer Explanation
Reactivity of alkyl halides in nucleophilic substitution follows bond strength (Cā€“X bond): Cā€“I is weakest so iodide is most reactive. Order: \(\text{I} > \text{Br} > \text{Cl} > \text{F}\).