Chemistry Which metal is extracted from sea water? Magnesium Beryllium Aluminium Potassium Magnesium Beryllium Aluminium Potassium ANSWER DOWNLOAD EXAMIANS APP
Chemistry When water itself combines chemically with some element or mineral it is called Oxidation Hydration Carbonation Desilication Oxidation Hydration Carbonation Desilication ANSWER DOWNLOAD EXAMIANS APP
Chemistry Atoms of different elements have Different atomic number and different number of valence electrons Same number of electrons and neutrons Different atomic number and same eletronic configu-ration Same atomic number and same electronic configuration Different atomic number and different number of valence electrons Same number of electrons and neutrons Different atomic number and same eletronic configu-ration Same atomic number and same electronic configuration ANSWER DOWNLOAD EXAMIANS APP
Chemistry The most abundant element in the earth’s atmosphere is Nitrogen Argon Oxygen Krypton Nitrogen Argon Oxygen Krypton ANSWER DOWNLOAD EXAMIANS APP
Chemistry Most poisonous pollutant in water is Phosphate Arsenic Detergent Zinc Phosphate Arsenic Detergent Zinc ANSWER DOWNLOAD EXAMIANS APP
Chemistry The polymer obtained by the condensation of hexamethylene diamine and adipic acid is : Terylene Tollen's Bakelite Nylon 66 Terylene Tollen's Bakelite Nylon 66 ANSWER DOWNLOAD EXAMIANS APP
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