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AIIMS2009ChemistryCoordination Compounds

KF combines with HF to form KHF ₂ . This compound contains the species

Options

  1. AK ⁺, F ⁻ and H ⁺
  2. BK ⁺, F ⁻ and HF
  3. CK ⁺ and [ HF ₂ ]⁻
  4. D[ KHF ]⁺ and F ₂

Correct answer

C. K ⁺ and [ HF ₂ ]⁻

Step-by-step solution

The fluoride ion, by a process of hydrogen bonding, forms the anion, HF ₂⁻ . The compound is written as K ⁺ [ HF ₂ ]⁻ .

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