Chemistry In upper layer of atmosphere ozone is formed by Subjecting oxygen to high pressure The action of ultraviolet rays on oxygen The action of nitrogen on oxygen in atmosphere The combination of oxygen molecules Subjecting oxygen to high pressure The action of ultraviolet rays on oxygen The action of nitrogen on oxygen in atmosphere The combination of oxygen molecules ANSWER DOWNLOAD EXAMIANS APP
Chemistry Highest percentage of carbon is found in which form of coal? Lignite Peat Anthracite Bituminous Lignite Peat Anthracite Bituminous ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chemical name of 'Plaster of Paris' commonly used for setting broken bones is Calcium chloride Calcium nitrate Calcium carbonate Calcium sulphate Calcium chloride Calcium nitrate Calcium carbonate Calcium sulphate ANSWER DOWNLOAD EXAMIANS APP
Chemistry The buffer action of blood is due to the presence of CI– and [HCO3]– CI– and [CO3]2– [HCO3]– and H2CO3 HCI and NaCI CI– and [HCO3]– CI– and [CO3]2– [HCO3]– and H2CO3 HCI and NaCI ANSWER DOWNLOAD EXAMIANS APP
Chemistry 24 carat of diamond is equal to 200 g 200 mg 91% gold 95% mg 200 g 200 mg 91% gold 95% mg ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one is a soluble salt in H2O PbCl2 Zn(OH)2 CuS CaCl2 PbCl2 Zn(OH)2 CuS CaCl2 ANSWER DOWNLOAD EXAMIANS APP
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