Question

Give reasons:
1. Gold and Silver are found in their free state.
2. Sodium is never found in its' free state.
3. The sulphide ore is converted into an oxide for the extraction of metals.
4. The oxides of metals like Hg can be reduced by heating only.
5. The oxides of metals like Na, Mg, Ca cannot be reduced by Carbon.

Answer 1

1) its not reactive at all

2) it is highly reactive

3) for their easy extraction

ik these only sry

Answer 2

4. Because they are less reactive metal