Chemistry What is the element that is in the highest percentage in the composition of the earth ? Magnesium Oxygen Iron Silicon Magnesium Oxygen Iron Silicon ANSWER DOWNLOAD EXAMIANS APP
Chemistry The acid rain destroys vegetations because it contains Nitric acid Ozone Sulphuric acid Carbon monoxide Nitric acid Ozone Sulphuric acid Carbon monoxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry What do you understand by the term Espuma ? Foam Salt Soap Calcium Foam Salt Soap Calcium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following elements is least likely to be found in commercial fertilisers? Silicon Phosphorous Potassium Nitrogen Silicon Phosphorous Potassium Nitrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Setting of plaster of paris involves Oxidation process Hydration to form other hydrates Dehydration process Reduction process Oxidation process Hydration to form other hydrates Dehydration process Reduction process ANSWER DOWNLOAD EXAMIANS APP
Chemistry Electric bulbs are filled with : Argon Nitrogen Oxygen Carbon dioxide Argon Nitrogen Oxygen Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
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