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JEE Main20202 Sep 2020Morning ShiftChemistryChemical EquilibriumActual

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 Cu 2 + aq + S 2 - aq ⇌ Cus s is high because the solubility product is low.

Options

  1. A(A) is false and (R) is true.
  2. BBoth (A) and (R) are false.
  3. CBoth (A) and (R) are true but (R) is not the explanation for (A).
  4. DBoth (A) and (R) are true and (R) is the explanation for (A).

Correct answer

C. Both (A) and (R) are true but (R) is not the explanation for (A).

Step-by-step solution

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

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