Assertion (A): Addition of \( \mathrm{HgI}_{2} \) to \( \mathrm{KI}( \) aq. \( ) \) shows an inc...

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Assertion (A): Addition of \( \mathrm{HgI}_{2} \) to \( \mathrm{KI}( \) aq. \( ) \) shows an increase in freezing point.
Reason (R): \( \mathrm{HgI}_{2} \) (insoluble) reacts with \( \mathrm{KI}( \) aq.) to form complex \( \mathrm{K}_{2} \mathrm{HgI}_{4} \) and thus, number of particles present in solution decreases.
(A) Both A and R are true and R is the correct explanation of A.br(B) Both A and R are true, but R is not the correct explanation of A.
(C) A is true, but R is false.
(D) A is false, but R is true.
(E) Both A and R are false.
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