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AIIMS 2009
Exam
AIIMS
Year
2009
Subject
Chemistry
Chapter
Coordination Compounds

AIIMS 2009 · Chemistry · Coordination Compounds

KF combines with HF to form KHF_2 . This compound contains the...

KF\mathrm{KF} combines with HF\mathrm{HF} to form KHF2\mathrm{KHF}_2. This compound contains the species

Options

  1. AK+,F−\mathrm{K}^{+}, \mathrm{F}^{-}and H+\mathrm{H}^{+}
  2. BK+,F−\mathrm{K}^{+}, \mathrm{F}^{-}and HF\mathrm{HF}
  3. CK+\mathrm{K}^{+}and [HF2]−\left[\mathrm{HF}_2\right]^{-}
  4. D[KHF]+[\mathrm{KHF}]^{+}and F2\mathrm{F}_2

Correct answer

C. K+\mathrm{K}^{+}and [HF2]−\left[\mathrm{HF}_2\right]^{-}

Step-by-step solution

The fluoride ion, by a process of hydrogen bonding, forms the anion, HF2−\mathrm{HF}_2^{-}. The compound is written as K+[HF2]−\mathrm{K}^{+}\left[\mathrm{HF}_2\right]^{-}.
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