4.2 Item Analysis
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Multiple Choice Question
The question students were asked was:
1. What is the molecular geometry of NH3?
a. Linear
b. Trigonal Planar
c. Tetrahedral
d. Trigonal pyramidal
21/31 students got this right
1. What is the molecular geometry of NH3?
a. Linear
b. Trigonal Planar
c. Tetrahedral
d. Trigonal pyramidal
21/31 students got this right
Open Ended Question
The question students were asked was:
1. Look at the molecular geometry of CCl4 below.
b. Is this molecular polar or non-polar? Explain your reasoning for your answer using your knowledge of bond types and molecular
geometry.
12/31 students got this problem right.
1. Look at the molecular geometry of CCl4 below.
b. Is this molecular polar or non-polar? Explain your reasoning for your answer using your knowledge of bond types and molecular
geometry.
12/31 students got this problem right.