Chemistry Diamond is harder than graphite because of : None of these Difference of crystalline structures Difference in layers of atoms Tetrahedral structure of diamond None of these Difference of crystalline structures Difference in layers of atoms Tetrahedral structure of diamond ANSWER DOWNLOAD EXAMIANS APP
Chemistry Liquid Nitrogen boils at 77 kelvin 97 Kelvin 82 Kelvin 54 kelvin 77 kelvin 97 Kelvin 82 Kelvin 54 kelvin ANSWER DOWNLOAD EXAMIANS APP
Chemistry The biogas used for cooking is a mixture of which of the following? Methane and carbon dioxide Isobutane and propane Carbon dioxide and oxygen Methane and carbon monoxide Methane and carbon dioxide Isobutane and propane Carbon dioxide and oxygen Methane and carbon monoxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Particulates (< 1 µm size) remaining suspended in air indefinitely and transported by wind currents are called Fumes Aerosols Mists Smoke Fumes Aerosols Mists Smoke ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is not a precious/semi-precious stone? Pearl Ruby Emerald Sapphire Pearl Ruby Emerald Sapphire ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is known as the 'brown coal'? Bituminous Anthracite Coke Lignite Bituminous Anthracite Coke Lignite ANSWER DOWNLOAD EXAMIANS APP
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