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Explain why HC1 is a gas and HF is a liquid.

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CBSE/Class 11/Science/Chemistry/Unit 9-Hydrogen CBSE/Class 11/Science/Chemistry

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Fluorine is most electronegative due to this HF is more polar than HCl. Therefore HF is associated with intermolecular H Bonding and liquid at room temperature.

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Due to hydrogen bonding in HF .


Size of Hcl is greater than HF hence it is more stable HF has higher bond stability in terms of hydrogen bonding. FON elements. Hence it can form a liquid.

This is high polarity and hydrogen bonding in HF So HF has a strong permanetaly strong dipole movement


Due to hydrogen bonding in HF.

Bcz the presence of H-bond in HF

H-bonding is very weak in HCl than HF. Because electronegativity of F is higher than Cl.

Due to Hydrogen bonding in HF the molecular force of attraction between H and F is greater than that of HF is liquid and HCl is gas.

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Size of Hcl is greater than HF hence it is more stable HF has higher bond stability in terms of hydrogen bonding. FON elements. Hence it can form a liquid.

Both HCl and HF are gas at room temperature .But HF has highly boiling point than HCl because of the reason that in HF the strength of hydrogen bond is stronger than the strength of hydrogen bond in HCl

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