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Tellurium forms oxides of the formula Te...

Tellurium forms oxides of the formula `TeO, TeO_(2) and TeO_(3)`. What is the nature of these tellurium oxides ?

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TeO (oxidation number of Te is +2) is basic
`TeO_(2)` (oxidation number of Te is +4) is amphoteric
`TeO_(3)` (oxidation number of Te is + 6) is acidic.
As the oxidation number of the element forming oxide increases, the acidic nature also increases.
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RESONANCE-NITROGEN & OXYGEN FAMILY-Exercise 1
  1. Why sulphur in vapour state exhibits paramagnetic behaviour at above 8...

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  2. Write the following for a white phosphorus molecule (a) oxidation st...

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  3. Tellurium forms oxides of the formula TeO, TeO(2) and TeO(3). What is ...

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  4. Write the structure and oxidation number of sulphur in tetrathionate i...

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  5. Bond angle in PH(4)^(+) is higher than that in PH(3).Why ?

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  6. Write the oxyacids of the following {:("Oxide","Oxyacids"),(N(2)O(3)...

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  7. N(2), CO, CN^(-) and NO^(+) are isoelectronic but the former is chemic...

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  8. On moving down the group from O to Te acidic strength increases, why ?

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  9. What happens when barium azide is heated ?

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  10. Which stable elements of 15^(th) and 16^(th) group do not react with w...

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  11. Chemiluminescence is a phenomenon in which on element glows in dark wh...

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  12. Among the hydrides of group 16, water shows unsual boiling point. Why ...

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  13. Ammonium salts generally resemble those of postassium and rubidium in ...

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  14. Write balanced equation when NH(3) is dissolves in (a) water (b) HCl...

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  15. What happens when phosphine is absorbed in mercuric chloride solution ...

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  16. On being slowly passed through water, PH(3) forms bubbles but NH(3) di...

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  17. How is hydrazine prepared ?

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  18. Both PH(3) and NH(3) are Lewis bases, but basic strength of PH(3) is l...

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  19. In the preparation of P(4)O(6), a mixture of N(2) and O(2) is used rat...

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  20. A compound of 15^(th) group element is used as a fast drying agent in ...

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