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MHT CET202120 Sep 2021Morning ShiftChemistryd and f Block ElementsActual

What are the formulae of the compounds formed when lanthanoids (Ln) react with nitrogen and halogen respectively?

Options

  1. ALnN and LnX ₃
  2. BLnN ₃ and LnX
  3. C( Ln )₂ ~N ₃ and LnX ₃
  4. DLnN and LnX

Correct answer

A. LnN and LnX ₃

Step-by-step solution

Lanthanoids possess common oxidation state +3 Ln ⁺³+ N ⁻³ LnN (with Nitrogen) Ln ⁺³+ X ⁻¹ LnX ₃ (with halogen)

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