472.Why HF has abnormally high melting and boiling points?
Boiling point and also melting point is a function of intermolecular forces of attraction within molecules. HF has a normally high melting and boiling points due to hydrogen bonding.
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473.HF can not be stored in glass bottles. What is the reason for this?
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474.What happens when sulphur dioxide is passed through an acidic solution of sodium chlorate?
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475.What is the structure of Cl2O?
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476.Oxygen is sp3 hybridised in both H2O and Cl2O, but in H2O, the bond angle is 104° while in Cl2O, the bond angle is 112°. Account for this difference in the value of bond angle.
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477.Give two uses of chlorine dioxide (ClO2).
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478.Explain why fluorine form only one oxoacid, HOF.
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479.How will you prepare pure hypo-chlorus acid?
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480.Arrange the following in order of decreasing basic strength: (a) HCIO, HCIO2, HClO3, HClO4 (b) HOCl, HOBr, HOI