JEE Main 2020ChemistryChemical KineticsMediumMCQ

JEE Main 2020 — Chemical Kinetics Question with Solution

JEE Main 2020 (06 Sep Shift 1)

Question

Consider the following reactions
A→P1;B→P2;C→P3;D→P4
The order of the above reactions are a, b, c and d,respectively. The following graph is obtained when log[rate] vs.log[conc.] are plotted:

  
Among the following, the correct sequence for the order of the reactions is :

Choose an option

Show full solutionCorrect option: D
Correct answer
Dd>b>a>c

Step-by-step explanation

Rate =K[Conc]order 

logRate =logK+ order× log[conc]
so slope of graph is order of reaction. greater the slope greater is order of reaction so order of reaction ⇒"c<a<b<d''

 

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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.