Q14 of 160 Page 17

‘A substance has a definite shape as well as a definite volume’. Which physical state is represented by this statement?

Solids have a definite shape, distinct boundaries and fixed volumes, that is, have negligible compressibility. Solids have a tendency to maintain their shape when subjected to outside force.

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12

‘A substance has a definite volume but no definite shape’. State whether this substance is a solid, a liquid or a gas.

 13

Name the physical state of matter which can be easily compressed.

 15

A substance has neither a fixed shape nor a fixed volume. State whether it is a solid ,a liquid or a gas.

 16

Name two gases which are supplied in compressed form in homes and hospitals.