Chemistry ________ is used for making vinegar. Acetic acid Malic acid Oxalic acid Tartaric acid Acetic acid Malic acid Oxalic acid Tartaric acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry Conduction band electrons have more mobility than holes because they Have negative charge Are lighter Need less energy to move them Experience collision less frequently Have negative charge Are lighter Need less energy to move them Experience collision less frequently ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following chemicals is responsible for depletion of ozone layer in the atmosphere? Nitrous oxide Carbon dioxide Chlorofluorocarbons Sulphur dioxide Nitrous oxide Carbon dioxide Chlorofluorocarbons Sulphur dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Mercury is emitted into air by Burning coal Steam engine Coal fire Burning garbage Burning coal Steam engine Coal fire Burning garbage ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following compounds is commonly used as an antiseptic in mouthwashes and toothpastes ? Borax Saltpetre Hydrogen peroxide Sodium chloride Borax Saltpetre Hydrogen peroxide Sodium chloride ANSWER DOWNLOAD EXAMIANS APP
Chemistry The acid present in red ants is Formic acid Acetic acid Butyric acid Caproic acid Formic acid Acetic acid Butyric acid Caproic acid ANSWER DOWNLOAD EXAMIANS APP
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