The furring of kettles is caused by the presence in the water of?
- Calcium tetraoxosulphate (VI)
- Calcium hydrogentrioxocarbonate (IV)
- Calcium hydroxide
-
Calcium trioxocarbonate (IV)
The correct answer is: 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 \(Ca(HCO_3)_2\).