Chemistry Which of the following is a secondary pollutant ? SO2 NO CO PAN SO2 NO CO PAN ANSWER DOWNLOAD EXAMIANS APP
Chemistry Conduction band electrons have more mobility than holes because they Have negative charge Are lighter Experience collision less frequently Need less energy to move them Have negative charge Are lighter Experience collision less frequently Need less energy to move them ANSWER DOWNLOAD EXAMIANS APP
Chemistry Persons working in cement plants and lime stone quarries are prone to disease like Silicosis Cancer Asthma Pneumoconiosis Silicosis Cancer Asthma Pneumoconiosis ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following compounds is commonly used as an antiseptic in mouthwashes and toothpastes ? Hydrogen peroxide Sodium chloride Saltpetre Borax Hydrogen peroxide Sodium chloride Saltpetre Borax ANSWER DOWNLOAD EXAMIANS APP
Chemistry Vinegar is ________ . Glacial formic acid Diluted acetic acid Glacial acetic acid Diluted formic acid Glacial formic acid Diluted acetic acid Glacial acetic acid Diluted formic acid ANSWER DOWNLOAD EXAMIANS APP
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