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Chemiluminescence is a phenomenon in whi...

Chemiluminescence is a phenomenon in which on element glows in dark when exposed to moisture. Which element of `15^(th)` group shows this phenomenon ?

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White phosphorus `(P_(4))`
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RESONANCE-NITROGEN & OXYGEN FAMILY-Exercise 1
  1. What happens when barium azide is heated ?

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

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

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

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

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

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

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

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  9. How is hydrazine prepared ?

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

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

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

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  13. Write the structures of the oxides: N(2)O(3), N(2)O(5)

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  14. Why does NO(2) dimerise ?

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  15. In the manufacture of sulphuric acid by the contact process, sulphur t...

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  16. How are SO(2) Cl(2).SO(3) and SO(2) obtained from sulphuric acid ?

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  17. Sulphur on oxidation with hot sulphuric acid gives :

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  18. Pentahalides of phosphorus are known, but not pentahydride. Why ?

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  19. A compound 'X' which is a yellowish white powder is prepared by the re...

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  20. Which hydride of the oxygen family shows the lowest boiling point ?

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