Cyclopropane, pictured above, is a relatively unstable compound. As seen in the diagram, the carbon atoms form the corners of an equilateral triangle, and each carbon atom has two hydrogen atoms attached to complete an octet of electrons around the carbon atoms. Based upon this structure, why is cyclopropane a relatively unstable compound?  

A.
Hydrocarbon compounds are relatively unstable in general.
B.
Compounds that have identical atoms bonded to each other are relatively unstable.
C.
The bonds do not match the angles.
D.
There is no resonance to stabilize the compound.
Chemistry
AP
College Board
Exam No:AP Chemistry Problem Set 6 Year:2024 Question No:APChemistry2024AP0237

Answer:

C

Knowledge points:

2.5 Lewis Diagrams

Solution:

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