observe this table,the correct match of the salts with thier uses is
a)To purify water to make it free from germs --- 1. plaster of paris
b)For making baking powder --- 2. washing soda
c)To remove permanent hardness of water --- 3. bleaching powder
d) For making toys and decorative materials --- 4. baking soda
a) a-2,b-4,c-3,d-1 b)a-3,b-4,c-2,d-1
c) a-4,b-2,c-3,d-1 c) a-1,b-4,c-3,d-2
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Answer:
its answer is (b).
Explanation:
1) plaster of paris is used for making toys and decorative materials.
2) Washing soda is used to remove permanent hardness of water.
3) bleaching powder is used to purify water to make it free of germs
4)baking soda for making baking powder.