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99 Percentile Qs Bank for JEE MainChemistryRedox Reactions

Which of the following is a redox reaction?

Options

  1. AN a C l + K N O 3 → N a N O 3 + K C l
  2. BC a C 2 O 4 + 2 H C l → C a C l 2 + H 2 C 2 O 4
  3. CM g ( O H ) 2 + 2 N H 4 C l → M g C l 2 + 2 N H 4 O H
  4. DZ n + 2 A g C N → 2 A g + Z n ( C N ) 2

Correct answer

D. Z n + 2 A g C N → 2 A g + Z n ( C N ) 2

Step-by-step solution

The oxidation states show a change only in following reaction Other reactions are only displacement reactions and there is no change in oxidation number of any atom.

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