Chemistry Copper is refined by Zone refining Roasting Oxidation Electrolysis Zone refining Roasting Oxidation Electrolysis ANSWER DOWNLOAD EXAMIANS APP
Chemistry Atomic number of an atom gives the number of which of the following ? Neutrons Protons Electrons Neutrons and protons Neutrons Protons Electrons Neutrons and protons ANSWER DOWNLOAD EXAMIANS APP
Chemistry The laws of electrolysis are given by Lewis Ostwald Faraday Arrhenius Lewis Ostwald Faraday Arrhenius ANSWER DOWNLOAD EXAMIANS APP
Chemistry Air is said to be saturated when : It blows over the barren land Its pressure is minimum Its thickness is maximum It contains maximum content of water vapour It blows over the barren land Its pressure is minimum Its thickness is maximum It contains maximum content of water vapour ANSWER DOWNLOAD EXAMIANS APP
Chemistry An emulsion is a colloid of a Gas in a solid Liquid in a gas Liquid in a liquid Gas in a liquid Gas in a solid Liquid in a gas Liquid in a liquid Gas in a liquid ANSWER DOWNLOAD EXAMIANS APP
Chemistry Now-a-days yellow lamps are frequently used as street lights. Which of the following gases is used in these lamps ? Neon Hydrogen Sodium Nitrogen Neon Hydrogen Sodium Nitrogen ANSWER DOWNLOAD EXAMIANS APP
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