Chemistry Which of the following is a natural dye ? Crystal violet Alizarin Aniline blue Phenolphthalein Crystal violet Alizarin Aniline blue Phenolphthalein ANSWER DOWNLOAD EXAMIANS APP
Chemistry Threshold limit value of copper in the atmospheric air is 0.001 mg/m3 1.0 mg/m3 5.0 mg/m3 0.01 mg/m3 0.001 mg/m3 1.0 mg/m3 5.0 mg/m3 0.01 mg/m3 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Conduction band electrons have more mobility than holes because they Have negative charge Need less energy to move them Experience collision less frequently Are lighter Have negative charge Need less energy to move them Experience collision less frequently Are lighter ANSWER DOWNLOAD EXAMIANS APP
Chemistry What are the major pollutants of cigarette smoke? Carbon monoxide and benzene Carbon monoxide and nicotine Dioxin and benzene Carbon monoxide and dioxin Carbon monoxide and benzene Carbon monoxide and nicotine Dioxin and benzene Carbon monoxide and dioxin ANSWER DOWNLOAD EXAMIANS APP
Chemistry When conc. H2SO4 is added to dry KNO3, brown fumes are evolved. These fumes are due to NO2 N2O SO3 SO2 NO2 N2O SO3 SO2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Aspirin is common name of Acetyl Salicylic Acid Salicylic Acid Methyl Salicylate Salicylate Acetyl Salicylic Acid Salicylic Acid Methyl Salicylate Salicylate ANSWER DOWNLOAD EXAMIANS APP
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