Advertisements
Advertisements
Question
The process of conversion of iron into hydrated form of oxides is called _______.
Advertisements
Solution
The process of conversion of iron into hydrated form of oxides is called rusting.
APPEARS IN
RELATED QUESTIONS
Match the following :
| Column A | Column B |
| (a) Global warming | 1. Hydrated ferric oxide |
| (b) Acid rain | 2. Manganese dioxide |
| (c) Rust | 3. Carbon dioxide |
| (d) Catalyst | 4. Methane |
| (e) Photosynthesis | 5. Nitrogen Dioxide |
Give two uses of the following component present in air:
nitrogen
How is air useful to water boats?
Name the important scientists and their studies which led to the discovery of the components of air.
What is wind energy?
Air has no ______ & ______.
Match the following:
| 1. | Layer of air | a. | Hand fan |
| 2. | Electrical energy | b. | 21% |
| 3. | Nitrogen | c. | Windmill |
| 4. | Oxygen | d. | Atmosphere |
| 5. | Palm Trees | e. | 78% |
Explain the following observations very briefly
A firki does not rotate in a closed area.
Explain the following observations very briefly
The arrow of weather cock points towards a particular direction at a particular moment.
Paheli kept some water in a beaker for heating. She observed that tiny bubbles appeared before the water started to boil. She boiled the water for about 5 minutes and filled it in a bottle up to the brim and kept the bottle air tight till it cooled down to room temperature.
Do you think tiny bubbles will appear on heating the water taken out from the bottle? Justify your answer.
