A solution is 0.1 M in and 0.001 M in . Solid is gradually added to it.

Select the correct statement:

Question

A solution is 0.1 M in  and 0.001 M in . Solid  is gradually added to it.

Select the correct statement:

Canvas Classes · Accepted Answer

Step 1 — Find  needed to start precipitation of each:

For AgCl:

For :

Step 2 — Compare:
- AgCl needs  M (much smaller)
-  needs  M (larger)

AgCl precipitates first (needs less )

Answer: Option (4) — AgCl precipitates first

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