Directions: From the four answers, select the most appropriate answer. Which of the following is NOT a chemical element?
Question and options
Directions: From the four answers, select the most appropriate answer.
Which of the following is NOT a chemical element?
- Silver
- Platinum
- Emerald
- Titanium
Answer and explanation
Correct answer: C - Emerald
Emerald is a gemstone, a green variety of the mineral beryl, which is a compound of beryllium, aluminium, silicon and oxygen. Silver (Ag), platinum (Pt) and titanium (Ti) are chemical elements.
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