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24 Cards in this Set
- Front
- Back
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Formula of benzene |
C6h6 |
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Name this |
2 methyl phenol |
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Why kekule model failed |
1. All bonds were of the same length, between that of single and double bond 2. Absorbs ir energy at different frequency from that of single and double bond |
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The ring of e is caused by |
Delocalized electron form p orbital |
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What can we conclude about the difference in theoretical and actual enthalpy change in hydrogenation of benzene |
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How benzene burns |
With yellow smoky flame |
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Type of reaction that benzene mostly undergoes |
Electrophilic substitution |
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Practical steps for preparation and collection of nitrobenzen |
Warm with reactants. Notrobenze floats on top. |
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Does nitration of benzene have change of multiple nitration? If yes, state ways to prevent it |
Yes .. Keep temperature below 55 |
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Practical steps of sulphonation And temp |
Warm with oleum at 40 |
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Condition for friedel craft alkylation |
Alcl3 is sensitive to hydrolysis. So the reaction mixture is refluxed in dry ether. |
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Name of product of friedel craft acylation |
Phenylketone |
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Risk of multiple acylation ...... |
No. Because phenyl ketones are less reactive . |
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Benzenes addition reaction |
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Methyl oxybenze |
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Reactivity of methyl benzene and and methyloxybenze compared to benzen |
They are much more reactive |
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Name these |
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Equation for reaction between phenol and bromine. Name the products. |
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Conditions for reaction between phenol and bromine. |
None. Its much more reactive. |
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Why phenol is more reactive that benzene |
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Reagents for nitration of phenol |
Dilute nitric acid |
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Products of nitration of phenol |
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Nitration of benzene vs phenol |
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Colour and solubility of tribromophenol |
White insoluble solid |
