CHEM 130 Discussion

If the central atom has 3 electron groups, what is the hybridization of the central atom?

• sp

• sp2

• sp3

• sp3d

What is the molecular geometry of CO2?

• Tetrahedral

• Trigonal Planar

• Seesaw

• Linear

If you were to draw the Lewis structure for C2H5NO2 (please don't), how many electrons would the molecule have?

• 30

• 10

• 75

• 42

What is the hybridization of the carbon atom in CH4

• sp3

• sp

• sp2

• sp3d

An antibonding orbital is generally ​ (a)   energy than its respective bonding orbital

• higher
• lower
• the same

Rank the following atoms from highest to lowest electronegativity

• N

• O

• F

• Si

• K

Two atoms have a difference in electronegativity of 2.5. Which of the following is most likely to be those two atoms?

• N and O

• H and Cl

• Si and H

• Ca and O

What is the electron geometry for a molecule with 4 bonding groups and 2 lone pairs?

• Square Planar

• Octahedral

• Square Pyramidal

• T-shaped

If you draw a Molecular Orbital diagram and there are no unpaired electrons, that means the molecule is​ (a)  

• diamagnetic
• paramagnetic
• ferromagnetic

What is the formal charge of a nitrogen with 1 bond and 3 lone pairs?

• +2

• 0

• -2

• +1