[" (6) I brassium iodide reacts with lead nitrate to produce potassium nitrate and lead iodide."],[" (a) "16" .Explain the following: "],[" (a) Sodium chloride is an ionic compound which does not conduct electricity in solid state,whereas "],[" (b) Reactivity of aluminium decrease if it is dipped in nitric acid."],[" (c) Metals like calcium and magnesium are never found in their free state in nature."],[" dassification of ther considered to be a more appropriate parameter than atomic mass for the "]