Exams › JEE Advanced › Chemistry
Identify the p-block non-metallic element present in each of the following minerals — chalcopyrite, cryolite, and pyrolusite — in that order.
- Sulfur, Fluorine, Oxygen
- Iron, Aluminium, Manganese
- Sulfur, Fluorine, Sulfur
- Sulfur, Chlorine, Fluorine
Correct answer: Sulfur, Fluorine, Oxygen
Solution
Chalcopyrite (CuFeS2) contains Cu and Fe (d-block metals) and S (p-block non-metal, group 16). Cryolite (Na3AlF6) contains Na (s-block), Al (p-block metal), and F (p-block non-metal, group 17). Pyrolusite (MnO2) contains Mn (d-block metal) and O (p-block non-metal, group 16). The p-block non-metals are S, F, O respectively.
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