हिंदी

Identify the formula of lanthanoid oxide formed when lanthanoid (Ln) is burnt in oxygen.

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प्रश्न

Identify the formula of lanthanoid oxide formed when lanthanoid (Ln) is burnt in oxygen.

विकल्प

  • Ln2O3

  • LnO2

  • Ln2O

  • LnO

MCQ
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उत्तर

Ln2O3

Explanation:

∵ Ln forms Ln3+ ions; they form Ln2O3 when it is burnt in oxygen.

\[\ce{4Ln + 3O2 -> 2Ln2O3}\]

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Properties of Lanthanoids
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