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Unit - 9.1 Occurrence of Carbon And Its Allotropic Forms — CHEMISTRY STD 8 — Question

ICSE BoardEnglish MediumSTD 8CHEMISTRYUnit - 9.1 Occurrence of Carbon And Its Allotropic Forms1 Mark
Question
Write the correct statements:
Black diamond is not very hard and is used for making cheap jewellery.
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Answer

Black diamond is very hard metal and is used for making cheap jewellery.

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