Chemistry What is the element required for solar energy conversion ? Silicon Ultra pure carbon Beryllium Tantalum Silicon Ultra pure carbon Beryllium Tantalum ANSWER DOWNLOAD EXAMIANS APP
Chemistry The depletion in Ozone layer is caused by ________ . Chlorofluorocarbons Methane Nitrous oxide Carbon dioxide Chlorofluorocarbons Methane Nitrous oxide Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following phenomenon is considered responsible for Global Warming? Greenhouse effect Dry farming Fire in coal mines Trade winds Greenhouse effect Dry farming Fire in coal mines Trade winds ANSWER DOWNLOAD EXAMIANS APP
Chemistry The metal ion present in Vitamin B12 is Nickel Cobalt Zinc Iron Nickel Cobalt Zinc Iron ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is a mixture of potassium nitrate, powdered charcoal and sulphur called? Gun powder Paint Glass Cement Gun powder Paint Glass Cement ANSWER DOWNLOAD EXAMIANS APP
Chemistry The alkaloid naturally found in coffee, cocoa and cola nut is Cocaine Morphine Caffeine Tannin Cocaine Morphine Caffeine Tannin ANSWER DOWNLOAD EXAMIANS APP
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