Chemistry Which of the following is not a precious/semi-precious stone? Emerald Ruby Pearl Sapphire Emerald Ruby Pearl Sapphire ANSWER DOWNLOAD EXAMIANS APP
Chemistry One property of ammonia is It is a odourless gas It is a yellowish gas Its aqueous solution turns red litmus blue It is insoluble in water It is a odourless gas It is a yellowish gas Its aqueous solution turns red litmus blue It is insoluble in water ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas that usually causes explosions in coal mines is Methane Carbon monoxide Hydrogen Air Methane Carbon monoxide Hydrogen Air ANSWER DOWNLOAD EXAMIANS APP
Chemistry Synthetic detergents are prepared from Potassium salts of higher fatty-acids Hydrocarbons of petroleum Glycerides Sodium salts of higher fattyacids Potassium salts of higher fatty-acids Hydrocarbons of petroleum Glycerides Sodium salts of higher fattyacids ANSWER DOWNLOAD EXAMIANS APP
Chemistry Vinegar is an aqueous solution of Hydrochloric acid Acetic acid Oxalic acid Citric acid Hydrochloric acid Acetic acid Oxalic acid Citric acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry The most common cause of pollution of air is Carbon monoxide Carbon dioxide Smoke Sulphur dioxide Carbon monoxide Carbon dioxide Smoke Sulphur dioxide ANSWER DOWNLOAD EXAMIANS APP
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