When Preeti placed a piece of Zinc metal in Mercuric chloride she noticed that the zinc piece acquired a silvery surface, but when she placed it in Magnesium sulphate solution no change was seen. Preeti is baffled by this behavior of Zinc .Can you help her to understand this?

When Preeti placed a piece of Zinc metal in Mercuric chloride she noti

1.	When Preeti placed a piece of Zinc metal in Mercuric chloride she noticed that the zinc piece acquired a silvery surface, but when she placed it in Magnesium sulphate solution no change was seen. Preeti is baffled by this behavior of Zinc .Can you help her to understand this?
Answer» it is because ZINC is more REACTIVE than MERCURY but LESS reactive than MAGNESIUM