Which of the following statements is true about propyne, H-C≡C-CH3?
A) It contains a total of three sigma bonds.
B) It contains a total of three pi bonds.
C) The H-C≡C bond angle is about 109.5°.
D) The C≡C-C bond angle is 180°.
E) All carbon-carbon bonds are of equal length.
Correct Answer:
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