When 0.44g of colourless oxide of nitrogen occupies 224 mL at 1520 mm of HG and 273 degree Celsius , then the oxide is ???
When 0.44 g of a colourless oxide of nitrogen occupies 224 mL at 1520 mm of Hg and 546 K , then the oxide is
When 0.44 g of a colourless oxide of nitrogen occupies 224 mL at 1520 mm of Hg and \(273^{\circ}C\) , then the oxide is