Equilibrium Question 66

Question: Which of the anhydrous salts when come in contact with water turns blue [AMU 1981, 82]

Options:

A) Ferrous sulphate

B) Copper sulphate

C) Zinc sulphate

D) Cobalt sulphate

Show Answer

Answer:

Correct Answer: B

Solution:

Cu(II) complexes are blue. The four water molecules are attached with secondary valencies of the metal atom e.g. $ [Cu{{(H_2O)}_4}],SO_4 $ . $ H_2O $ .



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