Four Metals P, Q, R and S Are All Obtained by the Reduction of Their Oxides with Carbon. Metal P is Used to Form a Thin Layer Over the Sheets of Metal S to Prevent Its Corrosion. Metal Q is Used for Electroplating Tiffin Boxes Made of Metal S Whereas Metal R is Used in Making Car Batteries. Metals Q and R Form an Alloy Called Solder. What Are Metals P, Q, R and S? How Have You Arrived at this Conclusion? - Science | Shaalaa.com

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