Question

Metals like Cu,Ag,Zn,Hg and Pb occur in nature as sulphides rather than oxides?Why?

Answer 1

all these metals are moderately reacting metals. It like to react more with sulphide than oxide under the soil. so they are in ulphides in nature

Answer 2

Answer:

Because these metals having low reactivity show little affinity for air, moisture, carbon dioxide.

Explanation:

These metals are known as native ores as they show the least chemical reactivity. For example gold, silver, mercury and platinum occur in free state.

These minerals (Cu,Ag,Zn,Hg and Pb )are inorganic compounds, which means that they are formed through geological rather than biological processes and so it is less reactive to combine with oxygen to form Oxides.