Equilibrium Question 835

Question: Consider the following equilibrium AgCl+2NH3[Ag(NH3)2]++Cl White precipitate of AgCl appears on adding which of the following-

Options:

A) NH3

B) aqueous NaCl

C) aqueous HNO3

D) aqueous NH4Cl

Show Answer

Answer:

Correct Answer: C

Solution:

2HNO3(aq)+[Ag(NH3)2++Cl AgCl(s)+2NH4+2NO3

When nitric acid is added to amine solution, solution is made acidic and the complex ion dissociates and liberate silver ion to recombine with chloride ion. This is the conformatory test for silver in group 1.



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