9. Lewis structure of OCCl2

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1. Calculate the total number of electrons in the valence shell of all the atoms in the molecule.

Wrong. Check the valence electrons of C, O and Cl.
Correct. 24 electrons
No es correcto. Check the valence electrons of C, O and Cl.

2. Select the central atom in the molecule.

Wrong. The central atom is always the less electronegative in the molecule.
Correct. Carbon is less electronegative than O or Cl. C

3. How many electrons are needed to form single bonds between C and the other three atoms in the molecule?

Wrong. More electrons are needed.
Correct. Each atom shares two electrons with carbon. A total of 6 electrones.are needed.
Wrong. three single bonds require less than 8 electrons.

4. How many electrons are needed to complete the octeto in all the terminal atoms?

Correct. Each terminal atom shares two electron with carbon. Will need 6 electrons more to complete the octeto. That makes a total of 18 electrons.
Wrong. Each terminal atom shares two electron with carbon. With seven electrons more each atom will overpass the octeto. Oxigen cannot expand the octeto.
Wrong. Each terminal atom shares two electron with carbon. With eight electrons more each atom will overpass the octeto. Oxigen cannot expand the octeto.

 

5. All the 24 electrons have been temporarily located but carbon has not completed the octeto. How do we have to reorganize the electrons?

C remains with six electrons.
Wrong. Carbon generally complets the octeto
Cl transfers two electrons to C.
Wrong That involves a double bond between Cl and C. Such bond is not favorable between these two atoms, Read more
Oxygen transfers two electrons to carbon
Correct Such transfer produces a C=O double bond in the molecule.

6. How is the geometry of this molecule?Structures

Wrong Check the structures table..
Correct. Three bonds around the carbon atom correspond to an environment of type AX3. Triangular planar structure..
Wrong. Check the structures table.