MCQ
Match column 1 with column II and mark the correct option from the given codes.
Column IColumn II
(a) $Na _2 CO _3$(i) Used for disinfecting water.
(b) $Na _2 CO _3$(ii) Used for soda-acid fire extinguishers.
(c) $CaOCl _2$(iii) Used for removing permanent hardness of water.
(d) $CaSO _4 \cdot \frac{1}{2} H _2 O$(iv) Used for making toys, materials for decoration.
  • A
    (a) (ii), (b) - (iii), (c) - (i), (d) - (iv)
  • B
    (a) (iii), (b) - (ii), (c) - (i), (d) - (iv)
  • C
    (a) (i), (b) - (ii), (c) - (iv), (d) - (iii)
  • D
    (a) (iii), (b) - (i), (c) - (iv), (d) - (ii)

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