Chemistry What is the mass percentage of carbon in carbon dioxide (CO2) 0.273 0.201 0.158 0.323 0.273 0.201 0.158 0.323 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Now-a-days yellow lamps are frequently used as street lights. Which of the following gases is used in these lamps ? Nitrogen Sodium Neon Hydrogen Nitrogen Sodium Neon Hydrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which gas emitted by power stations causes acid rain? Nitrogen Carbon dioxide Helium Sulphur dioxide Nitrogen Carbon dioxide Helium Sulphur dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Silicon is used in Transistors All of these Solar energy devices Semiconductors Transistors All of these Solar energy devices Semiconductors ANSWER DOWNLOAD EXAMIANS APP
Chemistry In an oxygen molecule, two atoms are united by Four bonds Three bonds Two bonds One bond Four bonds Three bonds Two bonds One bond ANSWER DOWNLOAD EXAMIANS APP
Chemistry CNG used in automobiles to check pollution, mainly consists of CO2 CH4 N2 H2 CO2 CH4 N2 H2 ANSWER DOWNLOAD EXAMIANS APP
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