What feature distinguishes Nitrous Oxide compared to other gases?

The feature that sets Nitrous Oxide apart from other gases is its slightly sweet odor and taste. This characteristic is particularly notable, as it helps differentiate it from other common gases that may be colorless and non-flammable. When healthcare professionals recognize this odor and taste, it can assist in the identification of Nitrous Oxide in various medical settings.

While the other options mention attributes that can apply to multiple gases, such as being colorless or non-flammable, they do not provide the unique identifying quality associated specifically with Nitrous Oxide. Its application in medicine extends beyond merely diagnostic purposes, which is why the notion that it is used solely for such is misleading.