When water boilers are used for long period of time, the solid substances left behind…

When water boilers are used for long period of time, the solid substances left behind…

When water boilers are used for long period of time, the solid substances left behind…

A.
magnesium trioxosilicate (IV) and rust
B.
magnesium trioxosilicate (IV) and calcium tetraoxosulphate (VI)
C.
clay and magnesium troxosulphate (IV)
D.
clay and rust

Correct Answer: Option A
Explanation

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