1.

Sunil studied the characteristics of four metals W, X, Y, and Z, which were exposed to the atmosphere. He noted down the following observations:Column IColumn IIWNo layerXGreenish layerYBlack layerZReddish-brown layerIdentify W, X, Y, and Z among iron, copper, silver, and platinum.

Answer»

Sunil studied the characteristics of four metals W, X, Y, and Z, which were exposed to the atmosphere. He noted down the following observations:

Column IColumn IIWNo layerXGreenish layerYBlack layerZReddish-brown layer

Identify W, X, Y, and Z among iron, copper, silver, and platinum.


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