JEE Main 2020ChemistryChemical KineticsEasyMCQ

JEE Main 2020 — Chemical Kinetics Question with Solution

JEE Main 2020 (07 Jan Shift 2)

Question

For the reaction 2H2g+2NOg→N2g+2H2Og the observed rate expression is, rate =kfNO2H2 . The rate expression for the reverse reaction is:

Choose an option

Show full solutionCorrect option: D
Correct answer
DkbN2H2O2/H2

Step-by-step explanation

K eq = k f k b = N 2 H 2 O 2 H 2 2 [NO] 2

At equilibrium rf=rb
 
k f H 2 [NO] 2 = k b N 2 H 2 O 2 H 2

Hence, rate expression for reverse reaction.

= k b N 2 H 2 O 2 H 2

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About this question

This is a previous-year question from JEE Main 2020, covering the Chemical Kinetics 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.