Chemistry Which of the following chemicals is responsible for depletion of ozone layer in the atmosphere? Chlorofluorocarbons Nitrous oxide Carbon dioxide Sulphur dioxide Chlorofluorocarbons Nitrous oxide Carbon dioxide Sulphur dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Name two elements that find wide application in transistor industry Tungsten and Platinum Carbon and Platinum Iridium and Germanium Silicon and Germanium Tungsten and Platinum Carbon and Platinum Iridium and Germanium Silicon and Germanium ANSWER DOWNLOAD EXAMIANS APP
Chemistry ________ gives hardness to stainless steel. Zinc Tin Lead Carbon Zinc Tin Lead Carbon ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ethylene is a ________ molecule. Polar Nonpolar Ionic Covalent Polar Nonpolar Ionic Covalent ANSWER DOWNLOAD EXAMIANS APP
Chemistry The greenhouse effect is caused by the higher level of which gas in the atmosphere ? Carbon dioxide Nitrous oxide Sulphur dioxide Carbon monoxide Carbon dioxide Nitrous oxide Sulphur dioxide Carbon monoxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The iron ore magnetite consists of 3Fe2O3 .. 3H2O Fe3OH4 Fe2O3 FeCO3 3Fe2O3 .. 3H2O Fe3OH4 Fe2O3 FeCO3 ANSWER DOWNLOAD EXAMIANS APP
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