Chemistry The gas that usually causes explosions in coal mines is Hydrogen Carbon monoxide Air Methane Hydrogen Carbon monoxide Air Methane ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following elements is used in the manufacture of safety matches? Sodium Silicon Phosphorus Graphite Sodium Silicon Phosphorus Graphite ANSWER DOWNLOAD EXAMIANS APP
Chemistry The half life period of an isotope is 2 hours. After 6 hours what fraction of the initial quantity of the isotope will be left behind? 1/6 1/8 1/4 1/3 1/6 1/8 1/4 1/3 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The mass of P4O10 that will be obtained from the reaction of 1.33 gram of P4 and 5.07 of oxygen is 3.05 gram 5.05 gram 4.05 gram 2.05 gram 3.05 gram 5.05 gram 4.05 gram 2.05 gram ANSWER DOWNLOAD EXAMIANS APP
Chemistry PH value between 6.5-7.5 makes the soil Neutral None of these Basic Acidic Neutral None of these Basic Acidic ANSWER DOWNLOAD EXAMIANS APP
Chemistry The wire of flash bulb is made of: Barium Copper Silver Magnesium Barium Copper Silver Magnesium ANSWER DOWNLOAD EXAMIANS APP
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