Chemistry The most abundant element in the earth’s atmosphere is Krypton Oxygen Argon Nitrogen Krypton Oxygen Argon Nitrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry The major component in the LPG is Ethane Methane Butane Propane Ethane Methane Butane Propane ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ferrous sulphate is used in water treatment as a/an Oxidizing agent Adsorbent Coagulant aid Reducing agent Oxidizing agent Adsorbent Coagulant aid Reducing agent ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is usually not an air-pollutant? Sulphur dioxide Nitrous oxide Hydrocarbons Carbon dioxide Sulphur dioxide Nitrous oxide Hydrocarbons Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry How many neutrons are there in 92U238 atom ? 330 146 238 92 330 146 238 92 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas that causes suffocation and death when coal or coke is burnt in a closed room is Carbon monoxide Methane Ethane Carbon di-oxide Carbon monoxide Methane Ethane Carbon di-oxide ANSWER DOWNLOAD EXAMIANS APP
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