Temporary hardness in water is due to presence of Temporary hardness in water is due to presence of  mcq  given below:

Q. Temporary hardness in water is due to presence of

(a) bicarbonate of calcium and magnesium
(b) chlorides of calcium and magnesium
(c) nitrates of calcium and magnesium
(d) oxides of calcium and magnesium

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Ans:(a) bicarbonate of calcium and magnesium 
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