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Purest Carbon?

Hello first of all brilliant.org and friends let me clear about the purest form of carbon ,in nature three forms of pure carbon graphite ,coal,and diamond are present.but all they have some impurities when found in nature.Amorphous carbon is actually made up of tiny crystal like bits of graphite with varying amounts of other elements which are considered as impurities.e.g the coal industry divides the coal into various grades depending upon the amount of carbon in the coal and the amount of impurities.the highest grade anthracite contains 90% carbon .so in my point of view my answer anthracite is correct as maximum percentage of carbon content in it as compared to other

Note by Alok Patel
1 year, 8 months ago

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Could you add this explanation to your problem? This discussion makes more sense there. Calvin Lin Staff · 1 year, 8 months ago

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That's always the issue between "theoretical" and "empirical". For example, when a chemistry question says "water is added to a NaCl solution", we do not say "ah, but water is impure and contains other ions, so there could be other reactions .... "

Theoretically, graphite and diamond (amongst others) are considered to be in pure form (without any impurities). Empirically, impurities will exist. If you wanted to talk about empirical diamond, it would have been clearer to talk about the grade of the diamond. Calvin Lin Staff · 1 year, 8 months ago

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