Chemistry Which of the following is very reactive and kept in kerosene? Potassium Bromine Iodine Sodium Potassium Bromine Iodine Sodium ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas present in the stratosphere which filters out some of the sun's ultraviolet light and provides an effective shield against radiation damage to living things is helium ozone methane oxygen helium ozone methane oxygen ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is the chemical symbol of mercury Mg Mr None of these Hg Mg Mr None of these Hg ANSWER DOWNLOAD EXAMIANS APP
Chemistry A solution is A mixture of two liquids A homogeneous mixture of two or more substances A solid dissolved in a liquid A solid dissolved i water A mixture of two liquids A homogeneous mixture of two or more substances A solid dissolved in a liquid A solid dissolved i water ANSWER DOWNLOAD EXAMIANS APP
Chemistry The most common cause of pollution of air is Carbon dioxide Smoke Sulphur dioxide Carbon monoxide Carbon dioxide Smoke Sulphur dioxide Carbon monoxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry For a spontaneous chemical process, the free energy change is Zero Positive Negative Depends on whether the reaction is exothermic or endothermic Zero Positive Negative Depends on whether the reaction is exothermic or endothermic ANSWER DOWNLOAD EXAMIANS APP
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