CH301 Exam 2 Recitation

Element X will form the most polar bond with C. Which of the following is the identity of X?

• H

• B

• N

• C

• O

Complete the chemical formula for Magnesium Phosphate. Fill in the blanks: Mg_(PO₃)_

• 1, 1 (no subscripts)

• 3, 2

• 4, 1

• 2, 3

• 2, 2

In the Lewis Structure for Oxygen Difluoride (OF₂), what is the total number of electron pairs?

• 8

• 6

• 4

• 2

• 3

How many resonance structures can be drawn for H₃O⁺?

• 0

• 2

• 3

• 4

• 5

Which of the following molecules is most polar?

• A

• B

• C

• D

• E

What is the molecular geometry of NF₃?

• Bent

• Tetrahedral

• Trigonal Planar

• Trigonal Pyramidal

• Trigonal Bipyramidal

I am bonded to 4 atoms and I have one lone pair of electrons. What is my molecular geometry?

• Bent

• Trigonal bipyramidal

• Trigonal pyramidal

• Seesaw

• Tetrahedral

Rank the following molecules from least to most regions of electron density (RHEDS) on the central atom.

• D < E < B < A < C

• A < C < B < E < D

• C < A < E < B < D

• C < A < B < E < D

• D < E < A < B < C

Which of the following molecules would have distorted bond angles?

• CH₄

• XeCl₄

• CH₃F

• O₂

• CO₂

Which of the following statements is true about carbon tetrafluoride (CF₄)?

• I, II, III

• I, II

• I, III

• II, III

• III only