Gas

Q. Why are the windows open when the lpg gas leaks

Q. Gases have ________.

1. definite shape

2. definite size

3. indefinite shape

4. definite volume

Q. There was no free oxygen in the early atmosphere, because most of it was tied up in

1. Ammonia
2. Methane
3. Water
4. Rock

Q.

On melting ice converts into ?

1. Water

2. Steam

3. Water vapor

4. None of these

Q.

We need ____ air to breathe.

1. fluid

2. solid

3. liquid

4. gaseous

Q. Gases do not have weight.

1. False
2. True

Q. On heating, dry ice converts to water vapour.

1. False
2. True

Q. Gases have ________.

1. definite shape

2. indefinite shape

3. definite size

4. definite volume