Question

What happens when ? Give equations also.
(a) Zinc sulphide is heated in air.
(b) Sulphur is heated with concentrated H2SO4.
(c) Steam is passed over red hot aluminium.
(d) Some zinc pieces are put into blue copper sulphate solution.
(e) Cinnabar is heated in air.
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Answer 1

Answer:

1. ZnS+O2→ZnO + SO2
2. S+H2SO4→SO4+H2Ho
3. Al2Al2O3 →Al+O2
4. Zn+CaUSe4→ZnSO4+Cu
5. HgS+O2→HgO+S+O2