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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 ENGLISH-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. Write the oxyacids of the following oxides: (i) SO(2) (ii) SO(3)

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  5. When nitrogen dioxide gas is bubbled through water it produces

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  6. Write balanced equation when NH(3) is dissolved in water.

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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, PH3 forms bubbles but NH3 dissol...

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  9. How is hydrazine prepared ?

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  10. What is the product when PH(3) reacts with HNO(3) ?

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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 oxyacids of the following oxides: N(2)O(3), N(2)O(5),N(2)O(4...

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  14. Why does NO(2) dimerise?

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  15. Why in the manufacture of H2 SO4 by contact process, sulphur trioxide ...

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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. In how many of the following reaction N(2) gas may be released? (a) N...

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

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  20. Identify the gas evolved in each of the following reactions: (a) heat...

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