25 mL of silver nitrate solution (1M) is added dropwise to 25 mL of potassium iodide (1.05 M) solution. The ion(s) present in very small quantity in the solution is/are (A) Ag+ and I– both (B) – only

Question

25 mL of silver nitrate solution (1M) is added dropwise to 25 mL of potassium iodide (1.05 M) solution. The ion(s) present in very small quantity in the solution is/are

(A) Ag+ and I– both
(B) – only
(C) K+ only
(D) NO3– only

Prashant Kotian · Accepted Answer

Correct answer: A. AgNO3 = 25 millmole KI = 26.25 millmole AgNO3 + KI  AgI + KNO3 so most of the Ag+ + KNO3 precipitated as AgI (sparingly soluble salt) so ion remaining in small quantities are Ag+ and I–.

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