Chemistry An example of replenishable energy source is– Biomass Coal Lignite Petroleum Biomass Coal Lignite Petroleum ANSWER DOWNLOAD EXAMIANS APP
Chemistry Highest percentage of carbon is found in which form of coal? Lignite Bituminous Peat Anthracite Lignite Bituminous Peat Anthracite ANSWER DOWNLOAD EXAMIANS APP
Chemistry The first metal used by a man was Silver Copper Brass Bronze Silver Copper Brass Bronze ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following was used as a chemical weapon in the first world war ? Carbon monoxide Mustard gas Water gas Hydrogen cyanide Carbon monoxide Mustard gas Water gas Hydrogen cyanide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The first organic compound synthesised in the laboratory was Urea Glucose Lactic acid Uric acid Urea Glucose Lactic acid Uric acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry The ionisation energy of hydrogen atom in the ground state is x KJ. The energy required for an electron to jump from 2nd orbit to 3rd orbit is 5x 7.2 x x/6 5x/36 5x 7.2 x x/6 5x/36 ANSWER DOWNLOAD EXAMIANS APP
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