Chemistry Which one of the following statement is correct ?Ozone is found in the earth's atmosphere mostly between 20 and 50 km 50 and 100 km 5 and 10 km 10 and 20 km 20 and 50 km 50 and 100 km 5 and 10 km 10 and 20 km ANSWER DOWNLOAD EXAMIANS APP
Chemistry When iron rusts, its weight Remains the same Increases Decreases First increases and then decreases Remains the same Increases Decreases First increases and then decreases ANSWER DOWNLOAD EXAMIANS APP
Chemistry In which of the following states maximum iron ore is found ? FeS2 Fe2O3 Fe3O4 FeCO3 FeS2 Fe2O3 Fe3O4 FeCO3 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Warming Ammonium chloride with sodium hydrochloride in a test tube is an example of Isobaric system Closed system Open system Isothermal system Isobaric system Closed system Open system Isothermal system ANSWER DOWNLOAD EXAMIANS APP
Chemistry Oxygen which is vital for life is a product of photosynthesis and comes from Carbonates from soil Carbon dioxide Water Oxides of mineral elements Carbonates from soil Carbon dioxide Water Oxides of mineral elements ANSWER DOWNLOAD EXAMIANS APP
Chemistry 24 carat of diamond is equal to 200 mg 91% gold 95% mg 200 g 200 mg 91% gold 95% mg 200 g ANSWER DOWNLOAD EXAMIANS APP
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