whatbdo u mean by melting and boiling points?

the temperature at which a substance changes its state from solid to liquid state is called the melting point of that substance. 

and the temperature at which a substance starts changing its state from liquid state is known as the boiling point of that substance.

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 the temperature at which a solid melts is called the melting point of that solid        and the temperature at which a liquid is in a state of evaporating is called the boiling point of that substance.

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 hope it helps

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yup.. it helped a lot.. thanx..


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