Difference between hf and other hydra acid of halogen

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 Difference between HF and other hydra acids of Halogens:

1-  It is associated with through the H-bonding and hence it is a liquid while other halogen acids are gases.

2-  Due to H-bonding it's viscosity and boiling points are higher than other halogen acids.

3-  It has high corrosive action on skin.

4-  It is very weak acid and extremely stable as compared to other halogen acids.

5-  It is not oxidised by strong oxidising agents while others are oxidised.

6-  It attacks glass forming SiF⁴ and hydrofluosilic acid while other don't attack glass.

7-  It is unique in forming salts contains HF² anion.

8- It doesn't give ppt with AgNO³ because AgF is soluble in water while others give ppt with AgNO³

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