Advertisements
Advertisements
प्रश्न
Iron objects undergo rusting when exposed to _______ and _______.
Advertisements
उत्तर
Iron objects undergo rusting when exposed to water and oxygen.
APPEARS IN
संबंधित प्रश्न
Burning of matchstick is an example for chemical reaction caused by _______
Which of the following factor induces electrtolysis?
Electrolysis of brine solution gives _______ gases.
Match the following.
| Rusting | Photosynthesis |
| Electrolysis | Haber’s process |
| Thermolysis | Iron |
| Food | Brine |
| Catalysis | Decomposition of limestone |
What happens to the brine during electrolysis?
On heating, calcium carbonate gives calcium oxide and oxygen. Is it an exothermic reaction or an endothermic reaction?
Palanikumar is a Lawyer. He lives in a luxurious flat. Due to high rent, he wants to shift his residence to a place where he has a chemical industry nearby. There the rent is very cheap and the area is less populated also. His son Rajasekar, studying VIII, does not like this and likes to go to some other place.
- Is Rajasekar right in his attitude?
- Why did he refuse to go there?
- What are the values shown by Rajasekar?
Lead nitrate produces brown gas on heating.
Photochemistry deals with chemical reactions involving light.
Name the nitrate which does not produce brown gas on heating?
