Chemistry Aqua regia is a 1 : 3 mixture, by volume, of Conc. hydrochloric acid and conc. nitric acid Conc. sulphuric acid and conc. nitric acid Conc. nitric acid and conc. hydrochloric acid Conc. nitric acid and conc. sulphuric acid Conc. hydrochloric acid and conc. nitric acid Conc. sulphuric acid and conc. nitric acid Conc. nitric acid and conc. hydrochloric acid Conc. nitric acid and conc. sulphuric acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one is the most reactive gaseous element Bromine Iodine Chlorine Flourine Bromine Iodine Chlorine Flourine ANSWER DOWNLOAD EXAMIANS APP
Chemistry 'Fire-fighting clothes' are made from Mica Talc Asbestos Steatite Mica Talc Asbestos Steatite ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following does not form oxyacid ? Nitrogen Sulphur Fluorine Chlorine Nitrogen Sulphur Fluorine Chlorine ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is the element that is in the highest percentage in the composition of the earth ? Silicon Magnesium Oxygen Iron Silicon Magnesium Oxygen Iron ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is a major green house gas? Carbon dioxide Freon Chloro fluorocarbon Carbon monoxide Carbon dioxide Freon Chloro fluorocarbon Carbon monoxide ANSWER DOWNLOAD EXAMIANS APP
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