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+1 vote
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in Coordination Compounds by (28.9k points)
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When CuSO4 is mixed with an excess of NH3 , a deep blue coloured solution is obtained. 

a) Write the formula of the compound formed. 

b) What is the IUPAC name of the compound? 

c) What do you understand by the term coordination number and ligand in a coordination compound? 

d) Give the oxidation number and coordination number of the central metal atom of the deep blue coloured compound.

1 Answer

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by (28.2k points)
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Best answer

a) [Cu (NH3)4]SO4 

b) Tetraammine copper (ll) sulphate 

c) It is the number of ligand atoms to which the metal is directly bonded. Ligands are neutral molecules or ions bounded to the central atom/ion in the coordination entity. 

d) Oxidation number of Cu in [Cu(NH3)4 ]SO4 is +2 Coordination number of Cu in [Cu(NH3)4 ]SO4 is 4.

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