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

Kingsley Thompson January 12, 2026

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

A. magnesium trioxosilicate (IV) and rust

B. magnesium trioxosilicate (IV) and calcium tetraoxosulphate (VI)

C. Clay and magnesium trioxosilicate (IV)

D. Clay and rust

The correct answer is:

B. magnesium trioxosilicate (IV) and calcium tetraoxosulphate (VI)

Explanation:

These substances are commonly deposited as scale in water boilers after long use, especially when hard water is used.

PQN: 4

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Kingsley Thompson

Posted by: Kingsley Thompson

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