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JEE Advanced2012ChemistryRedox ReactionsActual

Bleaching powder and bleach solution are produced on a large scale and used in several household products. The effectiveness of bleach solution is often measured by iodometry. Question: Bleaching powder contains a salt of an oxoacid as one of its components. The anhydride of that oxoacid is

Options

  1. ACl ₂ O
  2. BCl ₂ O ₇
  3. CClO ₂
  4. DCl ₂ O ₆

Correct answer

A. Cl ₂ O

Step-by-step solution

Ca ( OCl ) Cl Ca ²⁺+- OCl + Cl ⁻ -OCl (Hypochlorite ion) is anion of the acid HOCl which on dehydration gives Cl ₂ O . 2 HOCl H ₂ O + Cl ₂ O

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