JEE Main 2019ChemistryRedox ReactionsMediumMCQ

JEE Main 2019Redox Reactions Question with Solution

JEE Main 2019 (12 Apr Shift 1)

Question

An example of a disproportionation reaction is

Choose an option

Show full solutionCorrect option: C
Correct answer
C2 CuBrCuBr2+Cu

Step-by-step explanation

Disproportionation reaction: In this type of reaction, same elemental species gets oxidised as well as reduced.

 Na+1Br-1+Cl202Na+1Cl-1+Br20-not disproportionate,

2KMn+7O4K2Mn+6O4+Mn+4O2+O2-not disproportionate,

2Mn+7O4-+10J-+16H+2Mn+2+SI2+8H2O-not disproportionate
 

-It is disproportionate.

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About this question

This is a previous-year question from JEE Main 2019, covering the Redox Reactions chapter of Chemistry. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.