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Question: Answered & Verified by Expert
NaOCl is used as a bleaching agent and sterilising agent. It can be synthesised by the action of
Chemistrys Block ElementsJEE Main
Options:
  • A NaCl with H2O
  • B NH4Cl with NaOH
  • C Cl2 with cold and dilute NaOH
  • D Cl2 with hot and concentrated NaOH
Solution:
1974 Upvotes Verified Answer
The correct answer is: Cl2 with cold and dilute NaOH
NaOCl is used as a bleaching agent and sterilising agent. It is formed by the action of Cl2 with cold and dilute NaOH.

       2NaOH+Cl2 NaCl+NaOCl+H2O

    Cold and dil.

     6NaOH+3Cl2 5NaCl+NaClO3+3 H2O

   Hot and conc.

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