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CBSE Class 8 Answered

diamond is the hardest substance ever known but it breaks on beating. why?

Asked by Ramesh | 01 Feb, 2019, 06:41: PM
Expert Answer
Diamond is indeed the hardest substance, however, it does not mean that it is also the toughest.
It breaks down because it is brittle.
Hardness is the ability of a substance to resist scratch and dents on its surface.
Whereas, brittleness is the tendency of a substance to break down into pieces after exceeding the permissible limits of absorbable energy.
Answered by Science Mate | 01 Feb, 2019, 07:50: PM

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