Chemistry The first metal used by man was iron gold bronze copper iron gold bronze copper ANSWER DOWNLOAD EXAMIANS APP
Chemistry Sulphur dioxide present in the industrial chimney exhaust causes All of these Respiratory and lung disease Corrosion building materials Reduction in plant's productivity owing to acid rain All of these Respiratory and lung disease Corrosion building materials Reduction in plant's productivity owing to acid rain ANSWER DOWNLOAD EXAMIANS APP
Chemistry Removal of carbon particles from air involves the principle of Electrophoresis Sedimentation Precipitation Filteration Electrophoresis Sedimentation Precipitation Filteration ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is ozone depleting pesticide ? Benzene D.T. Methyl bromide Ethylene ozonide Benzene D.T. Methyl bromide Ethylene ozonide ANSWER DOWNLOAD EXAMIANS APP
Chemistry 24 carat of diamond is equal to 95% mg 200 g 200 mg 91% gold 95% mg 200 g 200 mg 91% gold ANSWER DOWNLOAD EXAMIANS APP
Chemistry Muscle fatigue is caused by the accumulation of : Uric acid Lactic acid Pyruvic acid Oxalacetic acid Uric acid Lactic acid Pyruvic acid Oxalacetic acid ANSWER DOWNLOAD EXAMIANS APP
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