Question on: JAMB Chemistry - 2014

Water is said to be temporarily hard when it contains

A
Ca (HCO3)2 and Mg (HCO3)2 salts
B
Ca (HCO3)2 and CaCO3 SALTS
C
Mg(HCO3)2 and CaSO4 salts
D
CaSO4 and Ca(HCO3)2 salts
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Correct Option: A

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