Chemistry Earth’s atmosphere is an envelope of gases extending to a height of 200 km 300 km 150 km 100 km 200 km 300 km 150 km 100 km ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is very reactive and kept in kerosene? Iodine Potassium Sodium Bromine Iodine Potassium Sodium Bromine ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following acids is used in battery ? Hydrochloric acid Sulphurous acid Hydrofluoric acid Sulphuric acid Hydrochloric acid Sulphurous acid Hydrofluoric acid Sulphuric acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following acids serves as an electrolyte in a lead storage battery? Nitric acid Sulphuric acid Hydrochloric acid Lactic acid Nitric acid Sulphuric acid Hydrochloric acid Lactic acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chemical that is used to ripen mangoes is Calcium carbide Calcium chloride Calcium carbonate Calcium sulphide Calcium carbide Calcium chloride Calcium carbonate Calcium sulphide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The maximum number of isomers for an alkene with molecular formula C4H8 is 3 4 5 2 3 4 5 2 ANSWER DOWNLOAD EXAMIANS APP