Chemistry The gas used for filling weather balloons is Air Hydrogen Nitrogen Helium Air Hydrogen Nitrogen Helium ANSWER DOWNLOAD EXAMIANS APP
Chemistry The metallic constituents of hard water are : Magnesium, calcium and tin Iron, tin and calcium Calcium, magnesium and iron Magnesium, tin and iron Magnesium, calcium and tin Iron, tin and calcium Calcium, magnesium and iron Magnesium, tin and iron ANSWER DOWNLOAD EXAMIANS APP
Chemistry The main component of liquid bleach is: Sodium chloride Hydrochloric acid Sodium hypochlorite Sodium hypochlorate Sodium chloride Hydrochloric acid Sodium hypochlorite Sodium hypochlorate ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is the product formed when sodium bicarbonate is heated strongly? Sodium Hydroxide Sodium Monoxide Sodium Peroxide Sodium Carbonate Sodium Hydroxide Sodium Monoxide Sodium Peroxide Sodium Carbonate ANSWER DOWNLOAD EXAMIANS APP
Chemistry Global warming is mainly due to accumulation of Oxides of nitrogen Carbon dioxide Oxides of sulphur Carbon monoxide Oxides of nitrogen Carbon dioxide Oxides of sulphur Carbon monoxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The weight of 6.023 × 1022 atoms of carbon is 1.2 gms 120 gms 12 gms 0.12 gms 1.2 gms 120 gms 12 gms 0.12 gms ANSWER DOWNLOAD EXAMIANS APP