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Write the tautomerism in sulphurous acid...

Write the tautomerism in sulphurous acid.

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Sulphurous acid has two tautomeric forms.
`underset("(I)")(O=overset(OH)overset("|  ")"S "-OH)harrunderset("(II)")(HO-overset(H)overset(|)underset(O)underset(||)S=O)`
 Structure I is preferred as the sulphite `(SO_(3)^(2-))` salts are familier for sulphurous acid.
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AAKASH SERIES-GROUP 16 ELEMENTS-EXERCISE - 2.2
  1. Write the tautomerism in sulphurous acid.

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  2. Oxygen is a blue gas, but sulphur is yellow solid. Explain.

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  3. Discuss the structure and bonding in S(8) molecules.

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  4. Radius of sulphur atom is 102 pm. SSS angle is 105^(@). What is the di...

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  5. Why is sulphur paramagnetic in vapour state?

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  6. Write on the valency, bonding and catenation of sulphur.

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  7. Oxygen is divalent in its compounds, but sulphur is even hexavalent. W...

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  8. Among rhombic, monoclinic and plastic forms of sulphur, which form has...

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  9. Liquid oxygen stick to magnetic poles but not liquid nitrogen. Why?

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  10. Comment on the sability of hydrogen sulphide and polysulphides.

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  11. Write on the trends of bond energy, bond angle, volatility and boiling...

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  12. Write the preparation of hydrogen sulphide. How is it used in qualitat...

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  13. Tetrafluorides of sulphur are not prepared directly from elements. Why...

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  14. How are fluorides of oxygen prepared ? Write their structures.

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  15. Discuss the bonding and structures of SF(6), SCl(4), SCl(2) and S(2)Cl...

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  16. Nitric acid can not be used to prepare hydrogen sulphide. Why?

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  17. The bond angle in water molecule is nearer to tetrahedral angle, but i...

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  18. Discuss the structures of sulphite and sulphate ions.

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  19. What is ozonolysis? Write equation for the ozonolysis of ethylene. Dra...

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  20. Ozone acts as oxidising agent as well as reducing agent. Substantiate.

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  21. Hydrogen sulphide can not be dried over conc. H(2)SO(4) Why?

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