Q. An excess of AgNO₃ is added to 100 mL of a 0.01 M solution of dichlorotetraaquachromium(III) chloride. The number of moles of AgCl precipitated would be
A) 0.001
B) 0.002
C) 0.003
D) 0.01
Explanation
[Solution from source] Dichlorotetraaquachromium(III) chloride is [Cr(H₂O)₄Cl₂]Cl, with only one chloride outside the coordination sphere. Moles of complex = 0.01 × 0.100 = 0.001 mol, giving 0.001 mol AgCl. Coordinated chlorides are not precipitated, so 0.003 is wrong. Answer (1).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.