1.

Washing soda is used ______._x005F_x000D_  _x005F_x000D_ I. for removing permanent hardness of water_x005F_x000D_  _x005F_x000D_ II. for disinfecting drinking water_x005F_x000D_  _x005F_x000D_ III. as a cleaning agent for domestic purpose_x005F_x000D_

A. Only I and II
B. Only I and III
C. Only II and III
D. All I, II and III
Answer» C. Only II and III


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