Chemistry Physical Properties Of Oxygen It is a diatomic gas, which is colourless, odourless and tasteless. It has no effect on litmus paper. It is slightly soluble in water. It is denser than air. It is liquefied at – 183°c and solidified at – 225°c Was this helpful?👍 Yes👎 No ← Previous Oxygen Next → Chemical Properties Of Oxygen Leave a comment Cancel replyYou must be logged in to post a comment.