JEE Main 2020ChemistryChemical EquilibriumMediumMCQ

JEE Main 2020 — Chemical Equilibrium Question with Solution

JEE Main 2020 (02 Sep Shift 1)

Question

For the following Assertion and Reason, the correct option is

Assertion (A) : When Cu (II) and sulphide ions are mixed, they react together extremely quickly to give a solid.

Reason (R) : The equilibrium constant of Cu2+aq+S2-aq⇌Cuss is high because the solubility product is low.

Choose an option

Show full solutionCorrect option: C
Correct answer
CBoth (A) and (R) are true but (R) is not the explanation for (A).

Step-by-step explanation

Rate of chemical reaction has nothing to do with value of equilibrium constant.

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About this question

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