Short answerEasy1 mark
4(b)
State your observations when ammonium hydroxide solution is added drop by drop and then in excess to each of the following solutions:
zinc sulphate solution.
Topic: Qualitative analysis using NaOH and NH₄OH
Previous-year question practice database
Answer
Exam answer
A white Zn(OH)₂ precipitate forms and dissolves in excess NH₄OH to a colourless solution.
More from Analytical Chemistry: Uses of Ammonium Hydroxide and Sodium Hydroxide
A reddish-brown precipitate formed when ferric chloride solution reacts with an alkali.2026the anion and2026the cation present in salt Y.2026Sodium hydroxide is added dropwise to Calcium nitrate solution.2026) ............... solution forms a coloured precipitate with ammonium hydroxide which is soluble in excess of ammonium hydroxide. [Ferrous chloride / Copper nitrate]2025............... conducts electricity by the movement of ions. [Molten iron / Molten sodium chloride]2025