Multiple choice

The composition of the mineral 'Talc' is

  1. silicon

  2. copper carbonate

  3. magnesium silicate

  4. none of these

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Talc is a mineral composed primarily of magnesium silicate hydrate, with the chemical formula Mg3Si4O10(OH)2. It is the softest mineral on the Mohs scale and is used in talcum powder and various industrial applications. Silicon alone is an element, not the complete composition of talc. Copper carbonate is malachite, a different mineral. Magnesium silicate is the correct chemical composition.

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