Advertisements
Advertisements
Question
On heating, calcium carbonate gives calcium oxide and oxygen. Is it an exothermic reaction or an endothermic reaction?
Advertisements
Solution
Endothermic reaction.
APPEARS IN
RELATED QUESTIONS
Burning of matchstick is an example for chemical reaction caused by _______
_______ undergoes rusting.
Which of the following factor induces electrtolysis?
Decomposition of lead nitrate is an example for a chemical reaction caused by light.
Light energy may come out due to chemical reactions.
Match the following.
| Rusting | Photosynthesis |
| Electrolysis | Haber’s process |
| Thermolysis | Iron |
| Food | Brine |
| Catalysis | Decomposition of limestone |
What is pollution?
What happens to the brine during electrolysis?
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?
Chemically rust is ______.
