Question

A metal M in nature find as sulphide ore is one of th good conductor of heat and electricity and is used in making electric wire .
A . Identify metal
B . Write balance equation involved in the process of extraction of metal.
C . Name the metal which not react with cold H2O and hot H20.

Answer 1

Metal M is copper.It is found in nature as Cu2S.

It is extracted from its sulphide ore just by heating in air.

The reaction is as follows-

2Cu2S + O2 -------> 2Cu2O(s) + 2SO2 (g)

2Cu2O + Cu2S -------> 6Cu(s) + SO2 (g)
C) Metals such as IRON do not react with cold water as well as hot water but reacts with steam to give its respective oxide and hydrogen gas.

3Fe (s) + 4 H2O(g) ------> Fe3O4(aq) +4H2(g)
Iron Steam Iron(ii,iii) Oxide Hydrogen