Inflammable Substances

Q. A substance which has very low ignition temperature and can easily catch fire with a flame is called _________.

1. an ignition substance
2. a rapid combustion
3. an inflammable substance
4. global warming substance

Q. Give some example of natural physical and chemical changes?

Q. Given below is a sign that is seen on a box at a petrol filling station. What does this sign indicate?

1. Non-combustible substance
2. Inflammable substance
3. High calorific value
4. Fire extinguisher

Q. Choose the correct statement about inflammable substances from the following. They have

1. High ignition temperature and can catch fire easily.
2. Low ignition temperature and can catch fire easily.
3. High ignition temperature and cannot catch fire easily.
4. Low ignition temperature and cannot catch fire easily.

Q. Which of the following options is true for substances having very low ignition temperature?

1. They catch fire easily.
2. They catch fire after some time.
3. They will not catch fire.
4. They always release sulphur dioxide.

Q. Which of these are inflammable substances?
A. Hydrogen B. Phosphorus
B. Water D. Coke

1. A and D
2. A and B
3. A, C and D
4. Only A