Chemistry What is the element that is in the highest percentage in the composition of the earth ? Silicon Iron Oxygen Magnesium Silicon Iron Oxygen Magnesium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Sulphuric acid is Dibasic Monobasic Tribasic Tetrabasic Dibasic Monobasic Tribasic Tetrabasic ANSWER DOWNLOAD EXAMIANS APP
Chemistry Oxygen which is vital for life is a product of photosynthesis and comes from Carbonates from soil Water Carbon dioxide Oxides of mineral elements Carbonates from soil Water Carbon dioxide Oxides of mineral elements ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is usually not an air-pollutant? Carbon dioxide Hydrocarbons Sulphur dioxide Nitrous oxide Carbon dioxide Hydrocarbons Sulphur dioxide Nitrous oxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The most important ore of lead is Pyrolusite Siderite Galena Magnetite Pyrolusite Siderite Galena Magnetite ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of these acids is not organic in origin? Sulphuric acid Lactic acid Citric acid Oxalic acid Sulphuric acid Lactic acid Citric acid Oxalic acid ANSWER DOWNLOAD EXAMIANS APP
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