MolSynapsequestion bank
MolSynapse / Question bank / p-Block Elements: Groups 17 and 18 / Chlorine and its reactions
JEE Main levelSingle correct optionDifficulty 2 of 3ph096

Assertion (A): Dry chlorine does not bleach dry coloured flowers, but moist chlorine does. Reason (R): In the presence of moisture chlorine forms hypochlorous acid, which liberates nascent oxygen that oxidises the coloured substance.

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

Answer: D

Dry cannot form , so no nascent oxygen is produced and no oxidation occurs. With moisture, and bleach the dye. Both statements are true and R explains A.
Practice p-Block Elements: Groups 17 and 18 More on Chlorine and its reactions
Previous questionNext question

More questions on Chlorine and its reactions