Chemistry An example of replenishable energy source is– Coal Lignite Petroleum Biomass Coal Lignite Petroleum Biomass ANSWER DOWNLOAD EXAMIANS APP
Chemistry Natural rubber is a polymer of Isoprene Styrene Vinyl acetate Propene Isoprene Styrene Vinyl acetate Propene ANSWER DOWNLOAD EXAMIANS APP
Chemistry An important green-house gas other than methane being produced from the agricultural fields is Nitrous oxide Arsine Sulphur dioxide Ammonia Nitrous oxide Arsine Sulphur dioxide Ammonia ANSWER DOWNLOAD EXAMIANS APP
Chemistry The three elements most needed in common fertilisers are : Sulphur, Phosphorous and Sodium Nitrogen, Potassium and Phosphorous Phosphorous, Sodium and Nitrogen Calcium, Phosphorous and Potassium Sulphur, Phosphorous and Sodium Nitrogen, Potassium and Phosphorous Phosphorous, Sodium and Nitrogen Calcium, Phosphorous and Potassium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Heating of a ore below its melting point in the absence of air is known as Calcination Refining Smelting Roasting Calcination Refining Smelting Roasting ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which acid is used in Lead storage battery? Acetic acid Hydrochloric acid Nitric acid Sulphuric acid Acetic acid Hydrochloric acid Nitric acid Sulphuric acid ANSWER DOWNLOAD EXAMIANS APP
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