Question

$KF$ combines with $HF$ to form $KHF_{2}$. The compound contains the species.

• A. $K^{+},$ $F^{-}$ and $H^{+}$
• B. $K^{+},$ $F^{-}$ and $HF$
• C. $K^{+}$ and $\left\lbrack HF_{2} \right\rbrack^{-}$
• D. $\lbrack KHF\rbrack^{+}$ and $F^{-}$

Answer 1

Answer: (C)

$K^{+}$ and $\left\lbrack HF_{2} \right\rbrack^{-}$

Answer 2

$KF + HF \rightarrow KHF_{2}$⇌$K^{+} + HF_{2}^{-}$