Chemistry Which of the following is used to remove rust stains on cloth? Lime Petrol Oxalic acid solution Kerosene Lime Petrol Oxalic acid solution Kerosene ANSWER DOWNLOAD EXAMIANS APP
Chemistry Detergents are None of these Sodium salts of sulphonic acids Sodium salt of benzoic acid Sodium salts of fatty acids None of these Sodium salts of sulphonic acids Sodium salt of benzoic acid Sodium salts of fatty acids ANSWER DOWNLOAD EXAMIANS APP
Chemistry Silicon is used in Solar energy devices Transistors Semiconductors All of these Solar energy devices Transistors Semiconductors All of these ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is the mass percentage of carbon in carbon dioxide (CO2) 0.323 0.201 0.158 0.273 0.323 0.201 0.158 0.273 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which is the highest quality of hard coal? Anthracite Bituminous Lignite Peat Anthracite Bituminous Lignite Peat ANSWER DOWNLOAD EXAMIANS APP
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