Physical Properties of Chloride by keypoint 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. Others are Viewing: Physical Properties of Hydrogen Physical Properties Of Oxygen Physical Properties Of NO Physical Properties Of NO2 Physical Properties Of HNO3 Physical Properties of Ammonia Physical Properties of Sulphur