The correct answer is: A. 1 and 2
Statement 1 is correct. Bromine is a reactive non-metal. It is a member of the halogen group, which also includes fluorine, chlorine, and iodine. Bromine is a liquid at room temperature and has a strong, irritating odor. It is used in a variety of industrial applications, including the production of pharmaceuticals, dyes, and pesticides.
Statement 2 is incorrect. Hydrochloric acid is not also called as maratic acid. Hydrochloric acid is a colorless, fuming, highly corrosive liquid. It is also known as muriatic acid. It is a strong acid and is used in a variety of industrial and commercial applications, including the production of steel, glass, and pharmaceuticals.
Statement 3 is correct. Chlorine is used in the production of phosgene, mustard gas, etc. Phosgene is a colorless, highly toxic gas that is used as a chemical weapon. Mustard gas is a blistering agent that is also used as a chemical weapon. Chlorine is also used in a variety of other industrial applications, including the production of paper, textiles, and plastics.