Chemistry Which of the following is a man-made source of air pollution ? Forest fire Bacterial action in soil and swamp areas All of these Automobile exhaust Forest fire Bacterial action in soil and swamp areas All of these Automobile exhaust ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following elements is found in all organic compounds Nitrogen Oxygen Calcium Carbon Nitrogen Oxygen Calcium Carbon ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is the most commonly used substance in fluorescent tubes? Mercury oxide and neon Sodium oxide and argon Sodium vapour and neon Mercury vapour and argon Mercury oxide and neon Sodium oxide and argon Sodium vapour and neon Mercury vapour and argon ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following fibres catches fire least ? Nylon Rayon Cotton Terricot Nylon Rayon Cotton Terricot ANSWER DOWNLOAD EXAMIANS APP
Chemistry Alcohol prepared by the distillation of wood is : Ethyl alcohol Glycerol Methyl alcohol Propyl alcohol Ethyl alcohol Glycerol Methyl alcohol Propyl alcohol ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which amidst the following is not a gem stone ? Cat's-eye Pearl Topaz Opal Cat's-eye Pearl Topaz Opal ANSWER DOWNLOAD EXAMIANS APP
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