Question:
When burnt in air the metal 'X' forms only oxide, where as metal 'Y' forms oxide and nitride. X, Y respectively are
When burnt in air the metal 'X' forms only oxide, where as metal 'Y' forms oxide and nitride. X, Y respectively are
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Metals like Li form only oxides on combustion, whereas alkali metals like Na form both oxides and nitrides under similar conditions.
Updated On: May 9, 2025
- Li, Na
- Na, Mg
- Ca, Mg
- Li, Mg
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The Correct Option is A
Solution and Explanation
Metal 'X' is Lithium (Li), which when burnt in air forms only lithium oxide (Li$_2$O) because it does not form a nitride in air. On the other hand, Metal 'Y' is Sodium (Na), which forms both sodium oxide (Na$_2$O) and sodium nitride (Na$_3$N) when burnt in air.
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