Chemistry The green colour seen in firework displays is due to the chloride salt of : Strontium Calcium Sodium Barium Strontium Calcium Sodium Barium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Gunpowder consits of a mixture of Sand and TNT Sulphur, sand and charcoal Nitre, sulphur and charcoal TNT and charcoal Sand and TNT Sulphur, sand and charcoal Nitre, sulphur and charcoal TNT and charcoal ANSWER DOWNLOAD EXAMIANS APP
Chemistry The process of improving the quality of rubber by heating it with sulphur is called. Vulcanization Acceleration Galvanization Sulphonation Vulcanization Acceleration Galvanization Sulphonation ANSWER DOWNLOAD EXAMIANS APP
Chemistry The elements with atomic numbers 9, 17, 35, 53, 85 are all Halogens Noble gases Light metals Heavy metals Halogens Noble gases Light metals Heavy metals ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the process is known as nitrification? Reaction of Nitrogen Monoxide with oxygen to form nitric acid Conversion of ammonia to nitrites Conversion of nitrite to nitric oxide Reaction of nitrogen dioxide with water to form nitric acid Reaction of Nitrogen Monoxide with oxygen to form nitric acid Conversion of ammonia to nitrites Conversion of nitrite to nitric oxide Reaction of nitrogen dioxide with water to form nitric acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is commonly used for pulp bleaching in the paper industry? Hydrogen peroxide Iodine and water Mild sulphuric acid Glucose isomerase Hydrogen peroxide Iodine and water Mild sulphuric acid Glucose isomerase ANSWER DOWNLOAD EXAMIANS APP
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