When an Object made Of material P is kept immersed in the blue colour solution, then a chemical change takes place to form a green coloured solution R and a brown layer of substance S is deposited on the object. P is used for making nails and S is used for making nails and S is used for making electrical wires than identify q and r
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When an Object made Of material P is kept immersed in the blue colour solution, then a chemical change takes place to form a green coloured solution R and a brown layer of substance S is deposited on the object. P is used for making nails and S is used for making nails and S is used for making electrical wires.
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