Question

HF is a liquid. why? ​

Answer 1

This is because, Fluorine is a very electronegative atom, and hence, it forms hydrogen bonding, making it a liquid

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Answer 2

Answer:

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( Due to greater electronegativity of F over Cl, F forms stronger H-bonds as compared to Cl. As a result, more energy is needed to break the H-bonds in HF than in HCl and hence the b.p. of HF is higher than that of HCl. Consequently, H-F is liquid while HCl is a gas at room temperature.)