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A molecule of alkene has the chemical formula C3H4. How many carbon-carbon double bonds are present in the molecule?

A) One
B) Two
C) Three.

User Laffuste
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2 Answers

4 votes
A molecule of Alkene has the chemical formula C3H4, there is one carbon to carbon double bond in the molecule.
User Thomas Decaux
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6 votes
For all of Carbon's valencies to be satisfied:
H₂C = C = CH₂
Thus, the answer is:
B) Two
User Pathoschild
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