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)
jamb 2002chemistry

The correct answer is B. Calcium hydrogentrioxocarbonate (IV)

In the presence of Calcium hydrogen trioxocarbonate(IV), a cause of temporary hardness of water, the kettle will most likely fur.

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