Which of the compounds is composed of Al, Si, O and H?
- Epson salt
- Limestone
-
Clay
- Urea
The correct answer is: C
Explanation
Between the five main minerals found in clay, kaolinite is the most common. Kaolinite holds the chemical composition Al\(_{2}\) Si\(_{2}\)O\(_{5}\)(OH)\(_{4}\) and is an aluminum silicate material with a low “shrink-swell” capacity. It is a soft, white mineral but is often colored orange or red by iron oxide found in the soil.
There is an explanation video available .