Combustion
Trending Questions
Q. What is the effect of potassium hydroxide solution on litmus paper?
- Turns blue litmus to green
- Turns blue litmus to red
- Turns red litmus to green
- Turns red litmus to blue
Q. Which among the following is non-combustible in nature?
- Petrol
- LPG
- Chalk
- Paper
Q.
Which hydrocarbon is the most flammable?
Q.
Two glass jars A and B are filled with carbon dioxide and oxygen gases, respectively. In each jar, a lighted candle is placed simultaneously. In which jar will the candle remain lighted for a longer time and why?
Q. Combustion is ___ reaction accompanied by light.
- an endothermic
- an exothermic
- a substitution
- an elimination
Q. Question 19
Anu wants to boil water quickly in a test tube. On observing the different zones of the flame, she is not able to decide which zone of the flame will be best for boiling water quickly. Help her in this activity.
Anu wants to boil water quickly in a test tube. On observing the different zones of the flame, she is not able to decide which zone of the flame will be best for boiling water quickly. Help her in this activity.
Q.
Name the following:
This gas supports burning.
Q.
oxygen supports combustion but water also contains oxygen but in water it does not get fire?
Q.
What is combustion?