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 Aromatic Hydrocarbons 38 Flashcards |
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What distinguishes aromatic hydrocarbons from aliphatic hydrocarbons? |
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Aromatic hydrocarbons contain delocalized pi electrons in a cyclic structure, while aliphatic hydrocarbons do not have this resonance stabilization. |
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Chlorophyll contains a porphyrin ring that exhibits ___ properties, essential for photosynthesis. |
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Aromatic |
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True or False: Aromatic hydrocarbons generally have a hydrogen-to-carbon ratio of 1:1. |
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True |
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What is the IUPAC name for a benzene ring with two nitro groups attached? |
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 1,3-dinitrobenzene |
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Identify the aromatic hydrocarbon known for being a key ingredient in mothballs. |
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 Naphthalene |
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Fill in the blank: The first compound recognized as an aromatic hydrocarbon is ___. |
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 Benzene |
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What is the primary type of reaction that aromatic hydrocarbons typically undergo? |
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 Electrophilic substitution reactions |
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Riddle: I am a structure with rings that smell sweet or sour, I help in making plastics hour by hour. What am I? |
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Aromatic hydrocarbons |
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What is the role of Greek numerical prefixes like di, tri, and tetra in naming aromatic compounds? |
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They indicate the number of identical substituent groups attached to the aromatic ring. |
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What type of bond can be formed through coupling reactions involving aromatic hydrocarbons? |
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Carbon-carbon bonds, carbon-oxygen bonds, and carbon-nitrogen bonds can be formed. |
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Which aromatic hydrocarbon is commonly used as a solvent in model glues? |
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Methylbenzene |
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Riddle: I am a hydrocarbon with a ring, I can be sweet or bitter, and for drugs, I often bring. What am I? |
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 Phenanthrene |
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What is the common name for the reaction where a nitro group is introduced onto an aromatic ring? |
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What type of aromatic hydrocarbon is defined as having multiple fused aromatic rings? |
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Polycyclic aromatic hydrocarbons (PAHs) |
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What type of reactions can result in the production of aryloxy compounds? |
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Coupling reactions involving aromatic hydrocarbons |
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Identify a common application of aromatic hydrocarbons in the petrochemical industry. |
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They are used in the production of plastics. |
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What is the role of palladium(II) acetate in coupling reactions involving aromatic hydrocarbons? |
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It acts as a catalyst to facilitate the joining of two radical parts. |
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Fill in the blank: The hydrogen-to-carbon ratio characteristic of aromatic compounds is ___:___. |
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1:1 |
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How does the resonance in aromatic hydrocarbons contribute to their stability? |
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Resonance allows for delocalization of pi electrons, which stabilizes the structure. |
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