Chemistry The natural source of hydro-carbon is Biomass Carbohydrates Crude oil Coal Biomass Carbohydrates Crude oil Coal ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is used to restore the colour of old oilpaintings ? Hydrogen peroxide Sodium peroxide Barium peroxide Ozone Hydrogen peroxide Sodium peroxide Barium peroxide Ozone ANSWER DOWNLOAD EXAMIANS APP
Chemistry The ore of Aluminium is Fluorspar Hematite Bauxite Chalco pyrites Fluorspar Hematite Bauxite Chalco pyrites ANSWER DOWNLOAD EXAMIANS APP
Chemistry Among the following, carbonate ore of Zinc is Sphalerite Zincblende Zincite Calamine Sphalerite Zincblende Zincite Calamine ANSWER DOWNLOAD EXAMIANS APP
Chemistry Brown stains in vessels and clothes indicate the presence of high quantities of ________ in water Calcium None of these Manganese Magnesium Calcium None of these Manganese Magnesium ANSWER DOWNLOAD EXAMIANS APP
Chemistry When a bond is formed between two atoms, the energy of the system will Decrease May increase or decrease Remain the same Increase Decrease May increase or decrease Remain the same Increase ANSWER DOWNLOAD EXAMIANS APP
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