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Which one of the following is not element ? a) diamond b) ozone c) silica d) graphite​
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Which one of the following is not element ?

a) diamond
b) ozone
c) silica
d) graphite​

User LulzCow
by
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1 Answer

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Silica is not an element. It is a compound made up of both silicon and oxygen.
User Marcolz
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