Permanent hardness of water may be removed by the addition of Options: A . &nbsplime B . &nbspsoda ash C . &nbsppotassium permagnate D . &nbspsodium bicarbonate

Permanent hardness of water may be removed by the addition of

Question

Permanent hardness of water may be removed by the addition of

Options:

A . lime

B . soda ash

C . potassium permagnate

D . sodium bicarbonate

Answer: Option B
Answer: (b).soda ash

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