Chemistry
Give one test to distinguish between the following:
Iron [III] chloride soln. and Copper chloride soln.
Answer
Ammonium hydroxide can be used to distinguish between the two. Iron [III] chloride soln. forms reddish brown ppt. of Fe(OH)3 which is insoluble in excess of ammonium hydroxide whereas copper chloride soln. forms a blue ppt. of Cu(OH)2 which is soluble in excess of ammonium hydroxide.
Related Questions
From the list of substances given — Ammonium sulphate, Lead carbonate, Chlorine, Copper nitrate, Ferrous sulphate — State a solution of the compound which gives a dirty green precipitate with sodium hydroxide.
Write a balanced equation for the reaction between aluminium oxide and sodium hydroxide solution.
The salt which in soln. gives a pale green precipitate with NaOH solution and a white ppt. with BaCl2 soln. is :
- Iron [III] sulphate
- Iron [II] sulphate
- Iron [II] chloride
- Iron [III] chloride
Find the odd one with reasons [valency is not a criterion] :
- Al(OH)3
- Pb(OH)2
- Mg(OH)2
- Zn(OH)2