Chemistry Now-a-days yellow lamps are frequently used as street lights. Which of the following gases is used in these lamps ? Nitrogen Hydrogen Neon Sodium Nitrogen Hydrogen Neon Sodium ANSWER DOWNLOAD EXAMIANS APP
Chemistry High concentration hydrocarbon pollutants in atmospheric air causes Cancer Silicosis Reduced crop yield Respiratory diseases (e.g.asthma) Cancer Silicosis Reduced crop yield Respiratory diseases (e.g.asthma) ANSWER DOWNLOAD EXAMIANS APP
Chemistry Main source of lead pollution is from Leaded gasoline Tobacco Insecticides Sewage Leaded gasoline Tobacco Insecticides Sewage ANSWER DOWNLOAD EXAMIANS APP
Chemistry The important metal used with iron to produce stainless steel is Chromium Tin Aluminium Carbon Chromium Tin Aluminium Carbon ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is used in welding broken pieces of iron rails and machine parts? Solder None of these Aluminium sulphate Aluminium powder Solder None of these Aluminium sulphate Aluminium powder ANSWER DOWNLOAD EXAMIANS APP
Chemistry The acid rain destroys vegetations because it contains Ozone Sulphuric acid Carbon monoxide Nitric acid Ozone Sulphuric acid Carbon monoxide Nitric acid ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS