Chemistry The gas that usually causes explosions in coal mines is Methane Hydrogen Air Carbon monoxide Methane Hydrogen Air Carbon monoxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The atomic number of carbon is 6 and its atomic mass is 12. How many are there protons in the nucleus of carbon ? 18 12 6 Zero 18 12 6 Zero ANSWER DOWNLOAD EXAMIANS APP
Chemistry Table salt gets moist during rainy season because Sodium chloride is hygroscopic Sodium chloride contains hygroscopic impurities like magnesium chloride Sodium chloride is deliquescent Sodium chloride contains some quantity of sodium iodide Sodium chloride is hygroscopic Sodium chloride contains hygroscopic impurities like magnesium chloride Sodium chloride is deliquescent Sodium chloride contains some quantity of sodium iodide ANSWER DOWNLOAD EXAMIANS APP
Chemistry If water smells bad, then that odour can be removed by adding Activated carbon Deactivated nitrogen Alum Bleach Activated carbon Deactivated nitrogen Alum Bleach ANSWER DOWNLOAD EXAMIANS APP
Chemistry In vulcanisation process, rubber can be hardened by adding Sulphur Nitrogen Alcohol Silicon Sulphur Nitrogen Alcohol Silicon ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following has least negative electron gain enthalpy Cl S P F Cl S P F ANSWER DOWNLOAD EXAMIANS APP
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