Chemistry The alkaloid naturally found in coffee, cocoa and cola nut is Morphine Caffeine Cocaine Tannin Morphine Caffeine Cocaine Tannin ANSWER DOWNLOAD EXAMIANS APP
Chemistry Chemical formula of washing soda is Na2SO4.10H2O NaHCO3 Ca(OH)2 Na2CO3.10H2O Na2SO4.10H2O NaHCO3 Ca(OH)2 Na2CO3.10H2O ANSWER DOWNLOAD EXAMIANS APP
Chemistry Diamond is lustrous because Its refractive index is high It is hard It is pure It is colourless Its refractive index is high It is hard It is pure It is colourless ANSWER DOWNLOAD EXAMIANS APP
Chemistry Copper is refined by Zone refining Oxidation Electrolysis Roasting Zone refining Oxidation Electrolysis Roasting ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is the most commonly used substance in fluorescent tubes? Mercury vapour and argon Sodium vapour and neon Mercury oxide and neon Sodium oxide and argon Mercury vapour and argon Sodium vapour and neon Mercury oxide and neon Sodium oxide and argon ANSWER DOWNLOAD EXAMIANS APP
Chemistry An example of replenishable energy source is– Biomass Petroleum Lignite Coal Biomass Petroleum Lignite Coal ANSWER DOWNLOAD EXAMIANS APP
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