Chemistry Physical Properties of Chloride It is greenish-yellow gas with unpleasant choking smell. It is poisonous. It is moderately soluble in water. It is denser than air. It is liquefied under pressure. Was this helpful?👍 Yes👎 No ← Previous Laboratory Preparation of Chlorine Next → Chemical Properties of Chlorine Leave a comment Cancel replyYou must be logged in to post a comment.