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JEE Main 20202 SeptemberMorning Shift
Exam
JEE Main
Year
2020
Date
2 September
Shift
Morning Shift
Subject
Chemistry
Chapter
Chemical Equilibrium

JEE Main 2020 · 2 September · Morning Shift · Chemistry · Chemical Equilibrium

For the following Assertion and Reason, the correct option is...

For the following Assertion and Reason, the correct option is

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

Reason (R) : The equilibrium constant of Cu2+{Cu}^{2 +}\left(aq\right) + {S}^{2 -}(aq)⇌Cus(s)\left(aq\right) ⇌ Cus\left(s\right) 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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