Do solids have definite shape and fixed volume ?

Do the gases have a definite shape and a fixed volume?

Does CNG have definite shape ?

(A): Young's modulus and shear modulus are relevant only for solids. (R) : Solids have definite shapes and lengths

Solids have a definite ____ and fixed ____ .

Show by an experiment that liquids do not have fixed shape but have fixed volume.

The substance 'X' normally exist in a physical state which ca flow easily but does not fill its vessel completely. It also turns dry copper sulphate to blue. When substance'X. is cooled excessively, It changes into a substance'y' which has a fixed shape and fixed volume. If, the substance 'x' is heated strongly., it changes into substance'z' which has neither a fixed shape not a fixed volume. At which temprerature 'x' gets converted into'z' ?

The substance 'X' normally exist in a physical state which ca flow easily but does not fill its vessel completely. It also turns dry copper sulphate to blue. When substance'X. is cooled excessively, It changes into a substance'y' which has a fixed shape and fixed volume. If, the substance 'x' is heated strongly., it changes into substance'z' which has neither a fixed shape not a fixed volume. name the substances 'x', 'y' and 'z'.

The substance 'X' normally exist in a physical state which ca flow easily but does not fill its vessel completely. It also turns dry copper sulphate to blue. When substance'X. is cooled excessively, It changes into a substance'y' which has a fixed shape and fixed volume. If, the substance 'x' is heated strongly., it changes into substance'z' which has neither a fixed shape not a fixed volume. What is the process of conversion of 'x' into 'z' known as?