Alkenes
7 practice questionsOrganic ChemistryStep-by-step solutions
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1
Geometric (cis–trans) isomerism in alkenes arises because of:
A.Free rotation around the double bond
B.Restricted rotation around the C=C double bond
C.Ionic bonding
D.Aromaticity
2
Which test reagent is decolorized by an alkene but not by an alkane, indicating a C=C double bond?
A.Bromine water
B.Distilled water
C.Sodium chloride
D.Limewater
3
The carbon–carbon double bond in an alkene consists of:
A.Two sigma bonds
B.One sigma and one pi bond
C.Two pi bonds
D.One pi bond only
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