Chemistry The chemical formula of the laughing gas is NO N2O3 NO2 N2O NO N2O3 NO2 N2O ANSWER DOWNLOAD EXAMIANS APP
Chemistry The temperature of oxy-acetylene flame is around 3200°C 2800°C 4000°C 3600°C 3200°C 2800°C 4000°C 3600°C ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is not a natural source of hydrocarbon? Coal Petroleum Mica Natural Gas Coal Petroleum Mica Natural Gas ANSWER DOWNLOAD EXAMIANS APP
Chemistry The substance most commonly used as a food preservative is Sodium carbonate Sodium salt of benzoic acid Acetic acid Tartaric acid Sodium carbonate Sodium salt of benzoic acid Acetic acid Tartaric acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is not a commercial source of energy? Natural Gas Coal Petroleum Firewood Natural Gas Coal Petroleum Firewood ANSWER DOWNLOAD EXAMIANS APP
Chemistry Brass is a solution of molten copper in Molten tin Gaseous zinc Solid zinc Molten zinc Molten tin Gaseous zinc Solid zinc Molten zinc ANSWER DOWNLOAD EXAMIANS APP
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