1. Tardigrade
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  3. Chemistry
  4. KF combines with HF to form KHF2. The compound contains the species:

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Q. $KF$ combines with $HF$ to form $KHF_2$. The compound contains the species:

BITSATBITSAT 2005

Solution:

The reaction is:
$KF + HF \rightarrow KHF _{2}$
It is formed due to $H$-bond. $K ^{+} F ^{-}---- H - F$ (-- is $H$-bond)
So, the compound contains $K ^{+}$and $\left[ HF _{2}\right]^{-}$ions.