Chemistry Spontaneous change is one in there is: A lowering of entropy A lowering of free energy An increase in Internal energy Increase in free energy A lowering of entropy A lowering of free energy An increase in Internal energy Increase in free energy ANSWER DOWNLOAD EXAMIANS APP
Chemistry Among the following, carbonate ore of Zinc is Sphalerite Zincblende Zincite Calamine Sphalerite Zincblende Zincite Calamine ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is the element that is in the highest percentage in the composition of the earth ? Oxygen Magnesium Silicon Iron Oxygen Magnesium Silicon Iron ANSWER DOWNLOAD EXAMIANS APP
Chemistry Pyrethrin used in mosquito coil is obtained from An insect A fungus A bacterium A seed plant An insect A fungus A bacterium A seed plant ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following gases is mixed with oxygen for breathing by divers in aqua lungs? Nitrogen Helium Hydrogen Methane Nitrogen Helium Hydrogen Methane ANSWER DOWNLOAD EXAMIANS APP
Chemistry The pollutant responsible for ozone holes is ________ CFC CO2 SO2 CO CFC CO2 SO2 CO ANSWER DOWNLOAD EXAMIANS APP
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