5) Identify the odd one stating reason for your answer. a) Aluminium oxide, lead oxide. calcium oxide, zinc oxide b) Sodium chloride, Hydrogen chloride, Magnesium chloride, Calcium chloride c) Copper sulphate, Ferrous sulphate.Ferric sulphate, Calcium chloride d) Sodium lon, Potassium lon, Calcium lon, ferric ion .
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Answer:
a) Al203 b) HCl c) ferric sulfate d) fe3+
Explanation:
a) all are in +2 oxidation state except Al
b) All are salt but HCl is acid
c) all are in +2 oxidation state but ferric in fe+3
d) all are s block except ferric
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