Which one of the following is not a use of washing soda:
A. Sodium carbonate (washing sodA. is used in glass, soap and paper industries.
B. It is used in the manufacture of sodium compounds such as borax.
C. Sodium carbonate can be used as a clean¬ing agent for domestic purposes.
D. It is used for disinfecting water.
Answer:D
Which one of the following is not a use of washing soda:
A. Sodium carbonate (washing sodA. is used in glass, soap and paper industries. B. It is used in the manufacture of sodium compounds such as borax. C. Sodium carbonate can be used as a clean¬ing agent for domestic purposes. D. It is used for disinfecting water.
Explanation: The compound that is used for disinfecting water is bleaching powder. How¬ever, washing soda is used for removing the permanent hardness of water.