Single Choice

Copper sulphate dissolves in ammonia due to the formation of:

A$$Cu_2O$$
B$$[Cu(NH_3)_4]SO_4$$
Correct Answer
C$$[Cu(NH_3)_4]OH$$
D$$[Cu(H_2O)_4]SO_4$$

Solution

Copper sulphate dissolves in ammonia due to the formation of $$[Cu(NH_3)_4]SO_4$$. $$CuSO_4 + 4NH_3 \rightarrow [Cu(NH_3)_4]SO_4$$ $$[Cu(NH_3)_4]SO_4$$ contains complex cation $$[Cu(NH_3)_4]^{2+}$$.

SIMILAR QUESTIONS

Coordination Compounds

Which of the following has no net dipole moment?

Coordination Compounds

Which of the following metal ion is present in Ziegler-Natta catalyst?

Coordination Compounds

Which plays a major role in the formation of complex compound?

Coordination Compounds

Which of the following complex ion is expected to absorb light in the visible region?

Coordination Compounds

The correct increasing order of trans-effect of the following species is:

Coordination Compounds

In calcium fluoride, having the fluorite structure, the coordination numbers for calcium ion $$(Ca^{2+})$$ and fluoride ion $$(F^-)$$ are:

Coordination Compounds

Specify the oxidation numbers of the metals in the following coordination entities: (i) $$[Co(H_{2}O)(CN)(en)_{2}]^{2+}$$ (ii) $$[CoBr_{2} (en)_{2}]^{+}$$ (iii) $$[PtCl_{4}]^{2-}$$ (iv) $$K_{3} [Fe(CN)_{6}]$$ (v) $$[Cr(NH_{3})_{3}Cl_{3}]$$

Coordination Compounds

Aqueous copper sulphate solution (blue in colour) gives: (i) a green precipitate with aqueous potassium fluoride and (ii) a bright green solution with aqueous potassium chloride. Explain these experimental results.

Coordination Compounds

What is the coordination entity formed when excess of aqueous KCN is added to an aqueous solution of copper sulphate? Why is it that no precipitate of copper sulphide is obtained when H2S(g) is passed through this solution?

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