Naveen studied the characteristics of three metals X, Y and Z, when exposed to moist air. Following observations were made: MetalColour changeXGreen coatingYBrownish redZNo change Identify the probable metals Naveen had.

Naveen studied the characteristics of three metals X, Y and Z, when ex

1.	Naveen studied the characteristics of three metals X, Y and Z, when exposed to moist air. Following observations were made: MetalColour changeXGreen coatingYBrownish redZNo change Identify the probable metals Naveen had.
Answer» Naveen studied the characteristics of three metals X, Y and Z, when exposed to moist air. Following observations were made: $\begin{matrix} M e t a l & C o l o u r c h a n g e X & G r e e n c o a t i n g Y & B r o w n i s h r e d Z & N o c h a n g e \end{matrix}$ Identify the probable metals Naveen had.