question_answer

Match column I with column II and mark the correct option from the codes given below.

Column I	Column II
(a)\[NaHC{{O}_{3}}\]	(i) Used for disinfecting water
(b)\[N{{a}_{2}}C{{O}_{3}}\]	(ii) Used in soda-acid fire extinguishers
(c)\[CaOC{{l}_{2}}\]	(iii) Used for removing Permanent I hardness of water
(d)\[CaS{{O}_{4}}.\frac{1}{2}{{H}_{2}}O\]	(iv) Used for making toys, materials for decoration

A) (a) - (iii), (b) - (i), (c) - (iv), (d) - (ii)

B) (a) - (ii), (b) - (iii), (c) - (i), (d) - (iv)

C) (a) - (iii), (b) - (ii), (c) - (i), (d) - (iv)

D) (a) - (i), (b) - (ii), (c) - (iv), (d) - (iii)