The furring of kettles is caused by the presence in the water of?
A.
Calcium tetraoxosulphate (VI)
B.
Calcium hydrogentrioxocarbonate (IV)
C.
Calcium hydroxide
D.
Calcium trioxocarbonate (IV)
Correct Answer: Option D
Explanation
The furring of kettles or boilers - this is as a result of the decomposition of \(Ca(HCO_3)_2\) into \(CaCO_3\), and this\(CaCO_3\) coats the inside of a kettle or boiler used in heating water containing dissolved \(Ca(HCO_3)_2\).
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