\(C_2H_6\) compound has:

  1. 8 covalent bonds
  2. 6 covalent bonds and 1 ionic bond
  3. 7 covalent bonds
  4. 7 Ionic Relations

Answer (Detailed Solution Below)

Option 3 : 7 covalent bonds
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Validation:

Chemical bond:

  • A chemical bond is a force or linkage that holds two or more atoms together in a stable molecule.
  • The driving force for the combination of atoms is related to their tendency to obtain a stable electronic configuration.
  • A chemical bond can be formed by electron transfer or electron sharing.
  • Ionic bonds:

    •  Electrostatic attraction occurs between two ions through the formation of an ionic bond.

    • An ion positively is charged and the second  NaCl or negative charge.
  • Covalent bonds:
    • Covalent bond formation occurs when electron sharing occurs between two atoms.
    •  The electron pair is like a bond between chlorine 2 forming equally shared atoms.
    • When a single bond between two atoms present is so, only one is bond.
    • When there exists more than one bond between atoms, there is only one sigma bond and the others are exemplary bonds.

Explanation:

  • Alkanes are saturated hydrocarbons that contain only single bonds and no pi or double bonds
  • Saturated hydrocarbon contains carbon-carbon and carbon-hydrogen single bonds.
    • Hydrocarbons: All carbon compounds which contain only carbon and hydrogen are called hydrocarbons.
  • The General Formula for Alkanes is CnH2n+2.
  • Example: Ethane (C2H6).
  • Alkanes have only covalent bonds and no ionic bonds.
  • The covalent bonds are formed by the overlap between carbon atoms and the overlap between carbon and hydrogen atoms.
  • The structure of ethane is:

F1 Pooja 21-01-21 Savita D17

We can clearly see that the ethene molecule has 7 covalent bonds.

Therefore,  C2H 7 covalent bond.

Additional Information

Ethane Wertz reaction is created by:

2CH 3 Br + 2Na → C 2 H 6  + 2NaBr 

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