Chemistry Diamond is harder than graphite because of : None of these Difference of crystalline structures Tetrahedral structure of diamond Difference in layers of atoms None of these Difference of crystalline structures Tetrahedral structure of diamond Difference in layers of atoms ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas used to extinguish fire is Nitrogen Neon Carbon monoxide Carbon dioxide Nitrogen Neon Carbon monoxide Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which among the following coal contains 90 per cent of carbon? Lignite Bitumen Peat Anthracite Lignite Bitumen Peat Anthracite ANSWER DOWNLOAD EXAMIANS APP
Chemistry One carat of diamond is equal to 150 mg 100 mg 250 mg 200 mg 150 mg 100 mg 250 mg 200 mg ANSWER DOWNLOAD EXAMIANS APP
Chemistry Hardest allotrope of carbon is Coke Diamond Lamp black Graphite Coke Diamond Lamp black Graphite ANSWER DOWNLOAD EXAMIANS APP
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