Chemistry Of the following, which one pollutes the air of a big city ? Chromium Lead Copper Cadmium Chromium Lead Copper Cadmium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Suspension particles have the size between 10–8 – 10–10cm 10–5 – 10–7cm 10–1 – 10–2 cm 10–2 – 10–4 cm 10–8 – 10–10cm 10–5 – 10–7cm 10–1 – 10–2 cm 10–2 – 10–4 cm ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one is the lightest element in the periodic table Carbon Oxygen Helium Hydrogen Carbon Oxygen Helium Hydrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is not a natural source of hydrocarbon? Natural Gas Petroleum Mica Coal Natural Gas Petroleum Mica Coal ANSWER DOWNLOAD EXAMIANS APP
Chemistry Where does the oxygen that keeps us alive come from? Oxides of minerals Carbonates absorbed from soil Carbon dioxide Water Oxides of minerals Carbonates absorbed from soil Carbon dioxide Water ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following contains high content of lead? Low octane fuel High octane fuel Cooking gas Coal Low octane fuel High octane fuel Cooking gas Coal ANSWER DOWNLOAD EXAMIANS APP
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