Chemistry Which of the following gases is mixed with oxygen for breathing by divers in aqua lungs? Nitrogen Hydrogen Methane Helium Nitrogen Hydrogen Methane Helium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following gases is present under pressure in soft drinks? Carbon dioxide Oxygen Nitrous oxide Nitrogen Carbon dioxide Oxygen Nitrous oxide Nitrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry The source of energy that causes the least global warming is Geothermal energy Natural Gas Coal Petroleum Geothermal energy Natural Gas Coal Petroleum ANSWER DOWNLOAD EXAMIANS APP
Chemistry The manufacturing of iron from iron ore involves the process of Fractional distillation Reduction Electrolysis Oxidation Fractional distillation Reduction Electrolysis Oxidation ANSWER DOWNLOAD EXAMIANS APP
Chemistry The value of Avogadro Number is 6.023 × 1022 6.023 × 1025 6.023 × 1023 6.023 × 1024 6.023 × 1022 6.023 × 1025 6.023 × 1023 6.023 × 1024 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The absolute temperature of a gas is doubled and the pressure is reduced to half, the volume of the gas Will be reduced to half Remains unchanged Will be doubled Will increase four-fold Will be reduced to half Remains unchanged Will be doubled Will increase four-fold ANSWER DOWNLOAD EXAMIANS APP
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