Chemistry Copper is refined by Electrolysis Roasting Oxidation Zone refining Electrolysis Roasting Oxidation Zone refining ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is the product formed when sodium bicarbonate is heated strongly? Sodium Monoxide Sodium Hydroxide Sodium Peroxide Sodium Carbonate Sodium Monoxide Sodium Hydroxide Sodium Peroxide Sodium Carbonate ANSWER DOWNLOAD EXAMIANS APP
Chemistry Who developed the model of atomic structure ? Bohr and Rutherford Alfred Nobel Volta Faraday Bohr and Rutherford Alfred Nobel Volta Faraday ANSWER DOWNLOAD EXAMIANS APP
Chemistry One of the following is used to dissolve noble metals. That is Hydrochloric acid Aqua ragia Sulphuric acid Nitric acid Hydrochloric acid Aqua ragia Sulphuric acid Nitric acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry The ionic radii of N3-, O2-, F- and Na+ follows the order N3- > Na+ > O2- > F- N3- > O2- > F- > Na+ Na+ > O2- > N3- > F- O2- > F- > Na+ > N3- N3- > Na+ > O2- > F- N3- > O2- > F- > Na+ Na+ > O2- > N3- > F- O2- > F- > Na+ > N3- ANSWER DOWNLOAD EXAMIANS APP
Chemistry Carbon monoxide is an inflammable gas. Which one of the following is also inflammable? Helium Hydrogen Oxygen Nitrogen Helium Hydrogen Oxygen Nitrogen ANSWER DOWNLOAD EXAMIANS APP
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