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MolSynapse / Question bank / p-Block Elements: Groups 17 and 18 / Interhalogen compounds and polyhalide ions
JEE Main levelSingle correct optionDifficulty 2 of 3ph208

Assertion (A): Interhalogen compounds are generally more reactive than the halogens , and . Reason (R): The X-X' bond in an interhalogen is weaker than the X-X bonds of those halogens.

  1. ABoth A and R are true and R is the correct explanation of A
  2. BBoth A and R are true but R is not the correct explanation of A
  3. CA is true but R is false
  4. DA is false but R is true

Answer: A

Interhalogens are polar, and the bond between two different halogens is weaker than the homonuclear X-X bonds of Cl, Br and I. A weaker bond breaks more readily, so the interhalogens react more easily. Both statements are true and R explains A.
Practice p-Block Elements: Groups 17 and 18 More on Interhalogen compounds and polyhalide ions

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