18. Answer briefly VII

3 m.

Mention the uses for the following compounds.

Compunds	Uses
a. Baking soda	Softening of hard water Fire extinguisher Preparation of cakes and bread Preparation of baking powder
b. Bleaching powder	Bleaching agent Disinfectant Preservative agent for meat and fish Cleaning agent in soap Sterilisation of drinking water
c. Quick lime	Whitewashing of walls For preparing chalk pieces For manufacturing glass For manufacturing cement

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