Chemistry Total number of halogen elements found in the periodic table is 8 3 5 13 8 3 5 13 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Galena is a mineral of Iron Lead Calcium Gold Iron Lead Calcium Gold ANSWER DOWNLOAD EXAMIANS APP
Chemistry Who developed the model of atomic structure ? Volta Faraday Alfred Nobel Bohr and Rutherford Volta Faraday Alfred Nobel Bohr and Rutherford ANSWER DOWNLOAD EXAMIANS APP
Chemistry How many neutrons are there in 92U238 atom ? 238 330 92 146 238 330 92 146 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of these acids is not organic in origin? Lactic acid Citric acid Sulphuric acid Oxalic acid Lactic acid Citric acid Sulphuric acid Oxalic acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas that usually causes explosions in coal mines is Hydrogen Carbon monoxide Methane Air Hydrogen Carbon monoxide Methane Air ANSWER DOWNLOAD EXAMIANS APP
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