Chemistry Which one of the following elements is used in the manufacture of fertilizers ? Lead Potassium Fluorine Aluminium Lead Potassium Fluorine Aluminium ANSWER DOWNLOAD EXAMIANS APP
Chemistry The main buffer system of the human blood is H2CO3 - CO32- H2CO3 - HCO3 CH3COOH - CH3COO- NH2CONH2 - NH2CONH+ H2CO3 - CO32- H2CO3 - HCO3 CH3COOH - CH3COO- NH2CONH2 - NH2CONH+ ANSWER DOWNLOAD EXAMIANS APP
Chemistry Charcoal is used in water treatment as a/an Solvent Adsorbent Coagulant Absorbent Solvent Adsorbent Coagulant Absorbent ANSWER DOWNLOAD EXAMIANS APP
Chemistry Highest percentage of carbon is found in which form of coal? Peat Bituminous Lignite Anthracite Peat Bituminous Lignite Anthracite ANSWER DOWNLOAD EXAMIANS APP
Chemistry All isotopes of the same element have ________ Different atomic numbers and the same atomic mass Different atomic numbers and different atomic mass The same atomic number and the atomic mass The same atomic number but different atomic masses Different atomic numbers and the same atomic mass Different atomic numbers and different atomic mass The same atomic number and the atomic mass The same atomic number but different atomic masses ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which is known as carbolic acid? Oxalic acid Phenol Ethanol Acetic acid Oxalic acid Phenol Ethanol Acetic acid ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS