Chemistry Which one out of the following helps in burning ? Oxygen Carbon dioxide Carbon monoxide Nitrogen Oxygen Carbon dioxide Carbon monoxide Nitrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry The metal used for making aircrafts and rockets is Nickel Copper Aluminium Lead Nickel Copper Aluminium Lead ANSWER DOWNLOAD EXAMIANS APP
Chemistry Acid rain is caused by the pollution of environment by Ozone and Carbon dioxide Carbon monoxide and Carbon dioxide Carbon dioxide and Nitrogen Nitrous oxide and Sulphur dioxide Ozone and Carbon dioxide Carbon monoxide and Carbon dioxide Carbon dioxide and Nitrogen Nitrous oxide and Sulphur dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The most abundant element in the human body is Nitrogen Oxygen Iron Carbon Nitrogen Oxygen Iron Carbon ANSWER DOWNLOAD EXAMIANS APP
Chemistry Sweat contains water and ________ Citric acid Vinegar Lactic acid Salt Citric acid Vinegar Lactic acid Salt ANSWER DOWNLOAD EXAMIANS APP
Chemistry The substance most commonly used as a food preservative is Sodium salt of benzoic acid Tartaric acid Acetic acid Sodium carbonate Sodium salt of benzoic acid Tartaric acid Acetic acid Sodium carbonate ANSWER DOWNLOAD EXAMIANS APP
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