Question

Complete the given table:

	Test	Observation	Conclusion
(i)	To solution A, barium chloride solution and dil. HCl were added.	(i)	Solution A contains SO42− ions.
(ii)	To solution B, NaOH solution was added.	(ii)	Solution B contains Fe3+ ions.
(iii)	To solution C, NH4OH was added slowly till it was in excess.	(iii)	Solution C contains Cu2+ ions.
(iv)	To solution D, AgNO3 solution and dil. HNO3 acid were added.	(iv)	Solution D contains Cl− ions.

Answer 1

	Test	Observation	Conclusion
(i)	To solution A, barium chloride solution and dil. HCl were added.	A white precipitate is formed which is insoluble in dil.HCl.	Solution A contains ${\mathrm{SO}}_4^{2-}$ ions.
(ii)	To solution B, NaOH solution was added.	A reddish brown precipitate is formed.	Solution B contains Fe3+ ions.
(iii)	To solution C, NH4OH was added slowly till it was in excess.	A blue coloured solution is obtained.	Solution C contains Cu2+ ions.
(iv)	To solution D, AgNO3 solution and dil. HNO3 acid were added.	A white precipitate is formed.	Solution D contains Cl− ions.