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Nitrogen exists as diatomic molecule and...

Nitrogen exists as diatomic molecule and phosphorus as `P_(4)`. Why ?

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RESONANCE-P BLOCK ELEMENTS-Exercise 1 part 1 subjective ques
  1. Nitrogen exists as diatomic molecule and phosphorus as P(4). Why ?

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  2. Why is BiH3 the strongest reducing agent amongst all the hydrides of g...

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  3. Anhydrous CaCl(2),P(4)O(10) or concentrated H(2)SO(4) can not be used ...

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  4. Explain why NH(3) is basic while BiH(3) is only feebly basic ?

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  5. Red phosphorus is denser, less volatile and chemically less reactive t...

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  6. NO(2) can not be dried by an alkali, why ?

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  7. Concentrated HNO(3) turns yellow is sun light. Explain ?

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  8. Nitric acid acts as an oxidising agent while nitrous acid can act both...

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  9. What products are formed when H(3)PO(2) is heated at 415 K and at 435 ...

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  10. What happens when phosphoric acid is heated ?

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  11. Why does H(3)PO(3) act as a reducing agent but H(3)PO(4) does not ?

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  12. What happens when white phosphorus is boiled with a strong solution of...

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  13. What happens when : (i) PCl(5), is heated (ii) H(3)PO(3) is heated

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  14. Why does PCl(3) fumes in air ?

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  15. Write the chemical reactions of P(4)O(6) with cold and hot water.

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  16. Mg3 N2 on reaction with water gives off NH3, but MgCl2 on reaction wit...

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  17. Write balanced equation for the following : Phosphorus is treated wi...

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  18. Manufacture of phophoric acid from phosphorus.

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  19. Write the allotropic forms of oxygen.

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  20. Explain why the liquid oxygen sticks to the magnet pole but liquid nit...

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