Benzene and Its Derivative
Presentation
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Chemistry
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11th - 12th Grade
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Practice Problem
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Medium
kusniar permana
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7 Slides • 4 Questions
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Benzene and Its Derivative
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Benzene Structure
Cyclic (aromatic/arenes/aryl compound) alkane with alternating double bond
The bond can resonate.
Prove: double bond length: 1.34 Å, single bond length: 1.54 Å, while benzene bond length: 1.39 Å
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Fill in the Blanks
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Multiple Select
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Benzene Structure
The actual structure of benzene can be explained by considering the bonding in the molecule. Each carbon atom in the hexagonal ring is sp2 hybridised sharing:
one pair of electrons with one of its neighbouring carbon atoms
one pair of electrons with its other neighbouring carbon atom
one pair of electrons with a hydrogen atom
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Benzene Structure
These are σ (sigma) bonds; covalent bonds with the pair of electrons found mainly between the nuclei of the atoms bonded to each other. Each carbon atom forms three σ bonds. That leaves one electron spare on each of the six carbon atoms. Each carbon atom contributes this one electron to a π (pi) bond. However, the π bonds formed are not localised between pairs of carbon atoms as in an alkene C=C bond. Instead, the π bonds in benzene spread over all six carbon atoms in the hexagonal ring. The six electrons in the π bonds are said to be delocalised.
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Benzene Structure
The π bonding in benzene is formed by the overlap of carbon p atomic orbitals, one from each of the six carbon atoms. To achieve maximum overlap, the benzene molecule must be planar. The lobes of the p orbitals
overlap to form a ring of delocalised electrons above and below the plane of the carbon atoms in the benzene molecule
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Multiple Select
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Benzene Derivatives
These are some benzene derivatives and its name
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Multiple Choice
What is the name of this benzene derivative compound?
Benzene and Its Derivative
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