Chemistry Which one of the following metals is used to galvanise iron ? Mercury Copper Lead Zinc Mercury Copper Lead Zinc ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is the product formed when sodium bicarbonate is heated strongly? Sodium Monoxide Sodium Hydroxide Sodium Peroxide Sodium Carbonate Sodium Monoxide Sodium Hydroxide Sodium Peroxide Sodium Carbonate ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chemical name of quartz is Sodium silicate Calcium phosphate Sodium phosphate Calcium oxide Sodium silicate Calcium phosphate Sodium phosphate Calcium oxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Earth’s atmosphere is an envelope of gases extending to a height of 150 km 200 km 100 km 300 km 150 km 200 km 100 km 300 km ANSWER DOWNLOAD EXAMIANS APP
Chemistry An inert gas mixed with oxygen given to patients suffering from restricted breathing is Radon Helium Krypton Argon Radon Helium Krypton Argon ANSWER DOWNLOAD EXAMIANS APP
Chemistry Heavy metal pollution of water is caused by: Domestic sewage Acid Plants Paints Wood burning Domestic sewage Acid Plants Paints Wood burning ANSWER DOWNLOAD EXAMIANS APP
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