The furring of kettles is caused by the presence in water of
- calcium hydrogentrioxocarbonate (IV)
-
calcium trioxocarbonate (IV)
- calcium tetraoxosulphate (VI)
- calcium hydroxide
The correct answer is: B
Explanation
Furring of kettles is caused by the temporary hardness in water. Temporary hardness in water is caused by calcium and magnesium trioxocarbonate (IV)CaCO3 causes the furring of kettles
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