Mischmetal is a well-known, pyrophoric alloy extensively utilized to manufacture sparking flints for — d and f Block Elements Chemistry Question

💡 Solution & Explanation

Mischmetal is a specialized alloy of the f-block elements. Its standard commercial composition consists of approximately $95\%$ Lanthanoid metals (with Cerium generally being the most abundant at $\approx 50\%$), roughly $5\%$ Iron to provide structural integrity, and trace impurities of Sulphur, Carbon, Calcium, and Aluminum.