Chemistry Earth’s atmosphere is an envelope of gases extending to a height of 150 km 100 km 200 km 300 km 150 km 100 km 200 km 300 km ANSWER DOWNLOAD EXAMIANS APP
Chemistry Black lung disease occurs in people working in Organic solvents industry Coal mines Paint manufacturing industry Electroplating industry Organic solvents industry Coal mines Paint manufacturing industry Electroplating industry ANSWER DOWNLOAD EXAMIANS APP
Chemistry When a lead storage battery is discharged, SO2 is evolved Lead sulphate is consumed Sulphuric acid is consumed Lead is formed SO2 is evolved Lead sulphate is consumed Sulphuric acid is consumed Lead is formed ANSWER DOWNLOAD EXAMIANS APP
Chemistry The major harmful gas emitted by automobile vehicle which causes air pollution is Carbon Monoxide Ozone gas Carbon dioxide Methane Carbon Monoxide Ozone gas Carbon dioxide Methane ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas used for filling weather balloons is Hydrogen Air Nitrogen Helium Hydrogen Air Nitrogen Helium ANSWER DOWNLOAD EXAMIANS APP
Chemistry The smog is essentially caused by the presence of O2 and O3 Oxides of N and S O3 and N2 O2 and N2 O2 and O3 Oxides of N and S O3 and N2 O2 and N2 ANSWER DOWNLOAD EXAMIANS APP
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