It is tasteless, colourless and odourless gas, which is exceedingly stable and inert.
Oxygen is a colourless, odourless and tasteless gas.
Nitrogen is a colourless, tasteless and odourless gas, which is only very slightly soluble in water.
As the carbon content of the molecule increases, they become less soluble in water, and their smell becomes less marked with the increase in boiling point, the highest members of the series being odourless solids, which can only be distilled without decomposition invacuo.
The next higher members of the series are liquids of low boiling point also readily soluble in water, the solubility and volatility, however, decreasing with the increasing carbon content of the molecule, until the highest members of the series are odourless solids of high boiling point and are insoluble in water.