Question

1) Which are the gases that cause acid rain?
2) Chemical used to make white toothpaste?
3) Quartz crystals are chemically called?
4) The compound used as petrol additive?
5) Central metal present in structure of chlorophyll?

Answer 1

1)Sulphur dioxide and nitrogen oxides react with water and oxygen and form sulphuric acid and nitric acid.
2) fluoride and titanium oxide
3) SiO2
4) gasoline
5) Mg+2