Chemistry Petroleum is a mixture of Salts Polymers Hydrocarbons Elements Salts Polymers Hydrocarbons Elements ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is not a cause for present global warming and climate change ? Methane emission CFC emission Carbondioxide emission Deforstation Methane emission CFC emission Carbondioxide emission Deforstation ANSWER DOWNLOAD EXAMIANS APP
Chemistry The important ore of aluminium is Cryolite Haematite Fluorspar Bauxite Cryolite Haematite Fluorspar Bauxite ANSWER DOWNLOAD EXAMIANS APP
Chemistry The natural source of hydro-carbon is Crude oil Carbohydrates Coal Biomass Crude oil Carbohydrates Coal Biomass ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is secondary air pollutant ? NO2 SO2 Photochemical smog Dust particles NO2 SO2 Photochemical smog Dust particles ANSWER DOWNLOAD EXAMIANS APP
Chemistry Earth’s atmosphere is an envelope of gases extending to a height of 100 km 150 km 300 km 200 km 100 km 150 km 300 km 200 km ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS