Chemistry - Metallurgy Question with Solution | TestHub

Option D is correct. Sphalerite (ZnS) is indeed the principal sulfide ore of zinc.

Explanation:

1. Not all minerals are ores; an ore is a mineral from which a metal can be economically extracted.

2. Iron (Fe) is abundant, but aluminum (Al) is the most abundant metal in the Earth's crust.

3. Sphalerite (ZnS) is a common and important sulfide ore of zinc.