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AP EAMCET2005Chemistryp Block Elements (Group 15, 16, 17 & 18)

Which one of the following pairs of reactants does not form oxygen when they react with each other?

Options

  1. AF ₂, NaOH solution (hot, conc.)
  2. BF ₂, H ₂ O
  3. CCl ₂, NaOH solution (cold, dilute)
  4. DCaOCl ₂, H ₂ SO ₄ (dilute, small amount)

Correct answer

C. Cl ₂, NaOH solution (cold, dilute)

Step-by-step solution

Cl ₂+ cold, dil 2 NaOH NaCl + NaClO + H ₂ O Chlorine react with cold and dilute NaOH to give sodium hypochlorite.

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