When CuSO 4 solution is treated with ammonia solution drop by drop till it is
CHEMISTRY
POST UTME OAU
When CuSO4 solution is treated with ammonia solution drop by drop till it is added in excess, a precipitate is first formed which then dissolves in excess to give a deep blue solution. The deep blue solution is
- A) Cu(OH)2
- B) (Cu(NH3)4)(OH)2
- C) CuSO4
- D)(Cu(NH3)2)SO4
Correct Answer: D)(Cu(NH3)2)SO4
Explanation
Cuso4 with the small amount of NH4OH, blue precipitate of cupric hydroxide is obtained. Which is soluble in excess of NH4OH due to formation of soluble complex.CuSO4 + 2NH4OH
Post an Explanation Or Report an Error
If you see any wrong question or answer, please leave a comment below and we'll take a look. If you doubt why the selected answer is correct or need additional more details? Please drop a comment or Contact us directly. Your email address will not be published. Required fields are marked *