Draw the electron dot formula for The molecule of CHCl3 . How many nonbonding electron pairs and bonding electron pairs are in the molecule of CHCl3?

Question

Draw the electron dot formula for The molecule of CHCl3 . How many nonbonding electron pairs and bonding electron pairs are in the molecule of CHCl3?

A) 9 nonbonding electron pairs and 4 bonding electron pairs.
B) 6 nonbonding electron pairs and 4 bonding electron pairs.
C) 3 nonbonding electron pairs and 4 bonding electron pairs.
D) 3 nonbonding electron pairs and 3 bonding electron pairs

Answer 1

    ..

  :Cl:

    |  ..

H-C-Cl:

    |   ^.. 

  :Cl:

    ^..

 

Each - or | represents two bonding electrons.

 

Chlorines have 3 non-bonding pairs each. Hydrogen has none. Since there are 3 chlorine atoms in this molecule, there are 9 non-bonding pairs.

 

In general, carbon always has 4 bonding electron pairs. Carbocations would be the exception to this rule but I doubt you'll see these in gen-chem.

 

A.