d and f Block ElementshardMCQ SINGLE

Mischmetal is a renowned, commercially significant alloy of inner transition metals extensively utild and f Block Elements Chemistry Question

Question

Mischmetal is a renowned, commercially significant alloy of inner transition metals extensively utilized to manufacture sparking flints for lighters and specialized magnesium-based bullets. What is the approximate, primary elemental composition of this specific alloy?

Answer: C

💡 Solution & Explanation

Mischmetal is a highly specific pyrophoric alloy heavily reliant on the f-block elements. Its standard metallurgical composition consists of approximately $95\%$ Lanthanoid metals (with Cerium generally being the most abundant constituent at $\approx 50\%$, along with $La, Nd, Pr$), roughly $5\%$ Iron to provide structural integrity, and trace impurities like Sulphur, Carbon, Calcium, and Aluminum.

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