Let be the number of alkali metals that form superoxides as their major product when heated in exces — s Block Elements Chemistry Question
Question
Let $x$ be the number of alkali metals that form superoxides as their major product when heated in excess oxygen. Let $y$ be the number of unpaired electrons in a single superoxide ion ($O_2^-$). What is the value of $x \times y$?
Answer: 3
💡 Solution & Explanation
The alkali metals that form superoxides as their major product are K, Rb, and Cs, so $x = 3$. The superoxide ion ($O_2^-$) has a 3-electron covalent bond with exactly 1 unpaired electron (paramagnetic), so $y = 1$. The product $3 \times 1 = 3$.
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