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Why does R(3)P=O exist but R(3)N=O does ...

Why does `R_(3)P=O` exist but `R_(3)N=O` does not (R is an alkyl group )?

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Because of inability of nitrogen to expand its covalency beyond 4
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RESONANCE-NITROGEN & OXYGEN FAMILY-Part-III Practice Test-2 (JEE (Advanced Pattern))
  1. Why does R(3)P=O exist but R(3)N=O does not (R is an alkyl group )?

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  2. An unknown substance (P) functions as weak base in water. It produces ...

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  3. The compound which gives oxygen on moderate heating is

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  4. Which of the following compounds does give N(2) on heating ?

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  5. Which of the following cannot result in the formation of NO ?

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  6. A gaseous substance dissolve in water giving a pale blue solution whic...

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  7. Which of the following will not decolourise acidified KMnO(4) ?

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  8. Which of the following statements is not true about ozone ?

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  9. Sulphuric acid reacts with PCl5 to give

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  10. Which is greater for P(4) (white) tan P(4) (red)

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  11. What is//are not true abut phosphine (PH(3))?

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  12. Which of the following is/are correct regarding nitrogen family

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  13. P(2)O(5) can dehydrate

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

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  15. 4AgNO(3) + 2H(2)O + H(3)PO(2) overset("boil")rarr 4 Ag + 'X' + 'Y' I...

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  16. Cold dilute nirtic acid would dissolved how many of the following with...

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  17. Which of the following on heating will produce an oxide of nitrogen ...

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  18. NaPO(3) can significantly react with how many of the following ? CaC...

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  19. One mole of PCl(3) is dissolved in excess of water. No. of moles of Na...

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  20. When hypo solution react with CuSO(4) and produce soluble complex, the...

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  21. How many of the following reaction yield POCl(3) ? {:((i) PCl(3) + O...

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