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OpenStudy (anonymous):
A molecule of alkene has the chemical formula C #H $. How many carbon-carbon double bonds are present in the molecule?
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OpenStudy (anonymous):
Assuming you mean C3H4:
OpenStudy (anonymous):
Since C has covalence 4 (= able to make 4 bond) and H covalence one, only the above drawn molecule and a molecule with one triple and one single bond are possible. So the answer is either 0 or 2
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