Same chapter3 marksDifficulty: Medium
A white precipitate is formed when sodium hydroxide is added to a salt solution, and it does not dissolve in excess. Name the cation and state one further test.
Analytical Chemistry
1 markDifficulty: Medium
A reddish-brown precipitate with sodium hydroxide, insoluble in excess, indicates the presence of:
- aFe2+
- bFe3+
- cCu2+
- dZn2+
Original Khojo Papers practice question — not from a past board paper.
Answer
Fe3+
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
Iron(III) hydroxide is reddish brown; iron(II) hydroxide is dirty green.
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