Question

1. A______
does not have a definite melting and boiling point.​

Answer 1

Answer:

So, air has no boiling point and it also has no melting point. Gold is a metal, ethanol is a type of alcohol and oxygen is type of gas which have only atoms of oxygen. Hence, remaining all three have fixed substances and therefore have fixed melting/ boiling point.

Answer 2

Answer:

AIR doesn't have a definite melting and boiling point.

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