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Kiara Singh
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Asked: 2023-12-21T05:30:06+00:00 In:

a) Explain why carbon forms covalent bond? Carbon forming a large number of compounds – Give Two reasons. b) The formation of ammonia molecule – Explain.

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    1. a) Explain why carbon forms covalent bond? Carbon forming a large number of compounds – Give Two reasons. b) The formation of ammonia molecule – Explain.

      a) Carbon has electronic configuration 2, 4. It could gain four electrons forming C-4 anion or lose 4 electrons to form C+4 cation. Both are not possible due to energy considerations. Carbon overcomes this problem by sharing electrons and forming covalent compounds.

      Two reasons for forming large number of compounds:
      1) Catenation 2) Tetra valency
      b) Formation of NH3 molecule
      N – 2, 5 H – 1
      Three hydrogen atoms each share 1 electron with nitrogen to form three covalent bonds. And therefore, it make an ammonia molecule (NH3). Diagram:

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