Which one of the following oxides can be correctly classified as a basic oxide?
Silicon dioxide, SiO2
Sulphur dioxide, SO2
Calcium oxide, CaO
Nitrous oxide, N2O
What is the nature (acidic /basic) of the following oxides ?
(a) Magnesium oxide (b) Sulphur dioxide
Give reason for your choice.
Which of the following is not a greenhouse gas?
(a) carbon dioxide
(b) nitrous oxide
(c) methane
(d) nitrogen
Which of the following are greenhouse gases?
(i) Water Vapour
(ii) Carbon Dioxide
(iii) Nitrous Oxide
(iv) Methane