Chemistry Which one is the lightest element in the periodic table Helium Hydrogen Carbon Oxygen Helium Hydrogen Carbon Oxygen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Atoms of same element having different mass numbers are called________ Isotones Isotopes Isobars Isomers Isotones Isotopes Isobars Isomers ANSWER DOWNLOAD EXAMIANS APP
Chemistry Chemical name of vinegar is Acetic acid Acetone Formaldehyde Ethanol Acetic acid Acetone Formaldehyde Ethanol ANSWER DOWNLOAD EXAMIANS APP
Chemistry Sour taste of ‘Coca Cola’ is due to the presence of Acetic acid Hydrochloric acid Formic acid Phosphoric acid Acetic acid Hydrochloric acid Formic acid Phosphoric acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry Magnetite is 2Fe2O3. 3H2O FeCO3 Fe2O3 Fe3O4 2Fe2O3. 3H2O FeCO3 Fe2O3 Fe3O4 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following statement is correct ?Ozone is found in the earth's atmosphere mostly between 5 and 10 km 50 and 100 km 10 and 20 km 20 and 50 km 5 and 10 km 50 and 100 km 10 and 20 km 20 and 50 km ANSWER DOWNLOAD EXAMIANS APP
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