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Why does NH(3) act as a Lewis base ?...

Why does `NH_(3)` act as a Lewis base ?

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N is `NH_(3)` has one lone pair of electrons which is available for donation. Therefore, it donates an electron pair to a proton to form `NH_(4)^(+)` ion and hence it acts as a Lewis base.
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PRADEEP-P-BLOCK ELEMENTS -NCERT QUESTIONS AND EXERCISES WITH ANSWERS
  1. PH(3) has lower boiling point that NH(3). Why ?

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  2. Write the reaction of thermal decomposition of sodium azide

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  3. Why does NH(3) act as a Lewis base ?

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  4. Why does NO(2) dimerise ?

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  5. In what way can it be proved that PH(3) is basic in nature ?

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  6. Why does PCI(3) fume in moisture ?

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  7. Are all the five bonds in PCI(5) equivalent ? Justify.

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  8. How do you account for the reducing behaviour of H(3)PO(2) ? Or (i) ...

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  9. Elements of group 16 generally show lower value of first ionization en...

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  10. Why is H(2)S less acidic than H(2)Te ?

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  11. Which form of sulphur shows paramagnetic behaviour ? Or Sulphur in t...

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  12. What happens when (i) Concentrated H2 SO4 is added to calcium fluori...

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  13. Halogens have maximum negative electron gain enthalpy. Explain why ?

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  14. Although Delta(eg)H of fluorine is less negative than that of chlorine...

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  15. Fluorine exhibits only -1 oxidation state whereas other halogens show ...

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  16. Write the balanced chemical equation for the reaction of CI(2) with ho...

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  17. When HCl reacts with finely powdered iron, it forms ferrous chloride a...

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  18. Deduce the molecular shape of BrF(3) on the basis VSEPR theory.

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  19. Why elements of group 18 known as noble gases?

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  20. Why do noble gases have low boiling points ?

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