Chemistry The natural source of hydro-carbon is Carbohydrates Crude oil Coal Biomass Carbohydrates Crude oil Coal Biomass ANSWER DOWNLOAD EXAMIANS APP
Chemistry Diamond is harder than graphite because of : Difference in layers of atoms None of these Tetrahedral structure of diamond Difference of crystalline structures Difference in layers of atoms None of these Tetrahedral structure of diamond Difference of crystalline structures ANSWER DOWNLOAD EXAMIANS APP
Chemistry Heavy metals got their name because compared to other atoms they have Higher densities Higher atomic masses Higher atomic radii Higher atomic numbers Higher densities Higher atomic masses Higher atomic radii Higher atomic numbers ANSWER DOWNLOAD EXAMIANS APP
Chemistry If a buffer solution is diluted its pH Will slowly increase and then it will decrease Remains same Is increased Is decreased Will slowly increase and then it will decrease Remains same Is increased Is decreased ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is the most commonly used substance in fluorescent tubes? Sodium vapour and neon Sodium oxide and argon Mercury oxide and neon Mercury vapour and argon Sodium vapour and neon Sodium oxide and argon Mercury oxide and neon Mercury vapour and argon ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following metals is not a pollutant ? Mercury Lead Arsenic Aluminium Mercury Lead Arsenic Aluminium ANSWER DOWNLOAD EXAMIANS APP
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