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JEE Advanced levelSingle correct optionDifficulty 3 of 3bn091

Bleaching powder is the mixed salt (formula ) of hypochlorous and hydrochloric acids. Give its name (anions in alphabetical order) and the oxidation numbers of its two kinds of Cl.

  1. Acalcium dichloride oxide; Cl is +1 and -1
  2. Bcalcium chloride hypochlorite; Cl is 0 in both
  3. Ccalcium chlorite chloride; Cl is +3 and -1
  4. Dcalcium chloride hypochlorite; Cl is +1 and -1

Answer: D

The salt has , and . In : , so Cl is ; in it is . Naming the anions alphabetically gives calcium chloride hypochlorite.
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