b) What do you observe when caustic soda solution is added to the following solutions first a little and then in excess. Also give balanced chemical equations. i) FeCi: ii) FeSO4 iii) ZnSO4 iv) Pb(NO3)2 v) CuSO4
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ferric hydroxide [Fe(OH)3] is obtained which is insoluble more than caustic soda solution. (ii) A gelatinous white ppt. of aluminum hydroxide is obtained which is soluble more than caustic soda solution.
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