Chemistry Which one of the following metals pollutes the air of a city having large number of automobiles? Lead Cadmium Chromium Copper Lead Cadmium Chromium Copper ANSWER DOWNLOAD EXAMIANS APP
Chemistry The polymer obtained by the condensation of hexamethylene diamine and adipic acid is : Tollen's Terylene Nylon 66 Bakelite Tollen's Terylene Nylon 66 Bakelite ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is colourless ? Chlorine Sulphur Phosphorus Oxygen Chlorine Sulphur Phosphorus Oxygen ANSWER DOWNLOAD EXAMIANS APP
Chemistry ________ is a by product of sewage treatment and can be decomposed to produce biogas Scum Sludge Sewer Sewage Scum Sludge Sewer Sewage ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is the mass percentage of oxygen in carbon dioxide (CO2) 0.305 0.727 0.509 0.658 0.305 0.727 0.509 0.658 ANSWER DOWNLOAD EXAMIANS APP
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