Chemistry
Which one of the following is most likely to be corroded?
- a stainless steel cup-board
- a galvanized iron bucket
- an iron hammer
- a tin plated iron box
Related Questions
Fill in the blanks:
(a) …………… is the most abundant inert gas present in air.
(b) Oxides of sulphur and nitrogen combine with rain water to form …………… and …………… which cause …………… .
(c) …………… and …………… are the most common air pollutants.
(d) …………… discovered the oxygen gas.
(e) Oxygen occupies about …………… of air by volume.
Match the following:
Column A Column B (a) Global warming (i) Hydrated ferric oxide (b) Acid rain (ii) Manganese dioxide (c) Rust (iii) Carbon dioxide (d) Catalyst (iv) Methane (e) Photosynthesis (v) Nitrogen dioxide A fuel that releases the least amount of pollutants in the air when used:
- Sulphur dioxide
- Chlorofluorocarbon
- Smoke
- CNG
The natural way of adding oxygen to air which involves green plants is called:
- Photosynthesis
- Respiration
- Burning
- Dissolution