Chemistry The first metal used by a man was Bronze Silver Brass Copper Bronze Silver Brass Copper ANSWER DOWNLOAD EXAMIANS APP
Chemistry The weight of 6.023 × 1022 atoms of carbon is 0.12 gms 1.2 gms 120 gms 12 gms 0.12 gms 1.2 gms 120 gms 12 gms ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is used for refrigeration? Chlorine Sulphur dioxide Phosphine Freon Chlorine Sulphur dioxide Phosphine Freon ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following compounds is commonly used as an antiseptic in mouthwashes and toothpastes ? Hydrogen peroxide Sodium chloride Saltpetre Borax Hydrogen peroxide Sodium chloride Saltpetre Borax ANSWER DOWNLOAD EXAMIANS APP
Chemistry An inert gas mixed with oxygen given to patients suffering from restricted breathing is Krypton Helium Argon Radon Krypton Helium Argon Radon ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is a renewable source of energy ? Coal Natural gas Geothermal powder Uranium Coal Natural gas Geothermal powder Uranium ANSWER DOWNLOAD EXAMIANS APP
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