When temporary hard water is boiled for sometime in a kettle; the inner surface of the kettle becomes coated with a deposit of?

A. calcium tetraoxosulphate(VI)
B. calcium trioxocarbonate (IV)
C. calcium hydrogentrioxocarbonate (IV)
D. aluminium trioxocarbonate (IV)

Correct Answer:

Option B – calcium trioxocarbonate (IV)