anion having an overall \( F-\mathrm{H}-\mathrm{F} \) distance of \...

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anion having an overall \( F-\mathrm{H}-\mathrm{F} \) distance of \( 2.26 \) A which may be compared with the \( \mathrm{H}-\mathrm{F} \) bond length of
\( \mathrm{P} \) \( 0.92 \AA \) in the moment. Which of the following is false for the anion ?

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(A) Hydrogen bonding plays a significant role in the existence of the anion
(B) Average bond length \( (\mathrm{H}-\mathrm{F}) \) is \( 1.13 \AA \) in the anion \( \mathrm{HF}_{2^{-}} \)
(C) The stretching of the \( \mathrm{H}-\mathrm{F} \) bond in the anion is \( 0.21 \AA \)
(D) \( \mathrm{H} \)-atom is bonded to two F-atoms through two \( \sigma \)-bonds in the anion.
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