question_answer 44)

                    CO2 turns lime water milky, :it is a non-supporter of combustion and is absorbed by strong alkalies like NaOH. Common salt besides being used in kitchen can also be used as the raw material for making               (i) washing soda                 (ii) bleaching powder                 (iii) baking soda                 (iv) slaked lime                 (a) (i) and (ii)                      (b) (i), (ii) and (iv)             (c) (i), (ii) and (iii)              (d) (i), (iii) and (iv)              

Answer:

  (c) Common salt (sodium chloride) is used as a raw material for making a large number of chemicals in industry such as sodium hydroxide, washing soda, baking soda, hydrochloric acid, hydrogen, chlorine and sodium metal. Chlorine gas obtained is used for making bleaching powder.