D-And F-Block Elements Ques 184

Question: If excess of NH4OH is added to CuSO4 solution, it forms blue coloured complex which is

[MP PMT 1971, 79; Bihar CEE 1995; RPET 1999; AFMC 2001]

Options:

A) Cu(NH3)4SO4

B) Cu(NH3)2SO4

C) Cu(NH4)4SO4

D) Cu(NH4)2SO4

Show Answer

Answer:

Correct Answer: A

Solution:

CuSO4+4NH4OH[Cu(NH3)4]BlueSO4+4H2O



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