Chemistry Which of the following is a secondary pollutant ? CO NO PAN SO2 CO NO PAN SO2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry In arc welding, Argon is used because of its Low reactivity with metal High flammability High calorific value Ability to lower the melting point of the metal Low reactivity with metal High flammability High calorific value Ability to lower the melting point of the metal ANSWER DOWNLOAD EXAMIANS APP
Chemistry Conduction band electrons have more mobility than holes because they Have negative charge Need less energy to move them Experience collision less frequently Are lighter Have negative charge Need less energy to move them Experience collision less frequently Are lighter ANSWER DOWNLOAD EXAMIANS APP
Chemistry The antiparticle of an electron is Alpha particles Positron Beta particles Proton Alpha particles Positron Beta particles Proton ANSWER DOWNLOAD EXAMIANS APP
Chemistry Iron filings can be separated from a heterogenous mixture using the technique of : Sedimentation Evaporation Magnetization Sublimation Sedimentation Evaporation Magnetization Sublimation ANSWER DOWNLOAD EXAMIANS APP
Chemistry Nitrification is the biological process of converting Ammonia into nitrite N2 into nitrate Ammonia into N2 N2into nitrite Ammonia into nitrite N2 into nitrate Ammonia into N2 N2into nitrite ANSWER DOWNLOAD EXAMIANS APP
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