question_answer 43)

  Match the chemical substances given in Column I with their appropriate application given in Column II.

Column I	Column II
A. Bleaching powder B.   Baking soda C.   Washing soda D.   Sodium chloride	1.  Preparation of glass 2.  Production of H2 andCl2 3.  De colourisation 4.  Antacid

                Codes                                 A             B             C             D                 (a)          2              1             4              3                 (b)          3              2              4              1                 (c)           3              4              1              2                 (d)          2              4              1              3                

Answer:

  (c) Bleaching powder bleaches the clothes and other coloured substances, baking soda is a constituent of antacid, washing soda is used in the preparation of glass and sodium chloride when subjected to electrolyses gives N2 and CI2 gases.