Tag Archives: organic chemistry

Electronic Transitions

The absorption of what type of electromagnetic radiation results in electronic transitions?

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C=O Stretch

For carbonyls that are part of a conjugated π-network, the C=O stretch:

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1H NMR Spectrum

The 1H NMR spectrum of an unknown compound shows the following signals: triplet, quintet and triplet (relative integrals 1:2:3, respectively). Which compound is consistent with this data?

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Cis and Trans

Which of the following statements best describes the structural relationship between cis-1,2-dibromocyclopropane and trans-1,2-dibromocyclopropane?

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Choose Wisely

Which of the following statements is correct?

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Unknown Alkene

An unknown alkene with molecular formula C7H12 undergoes the following reaction in basic KMnO4 under high heat to give one product (below). What is the identity of the alkene?

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Aromatic Compounds

Which of the following compounds would be considered aromatic?

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Shortest C-H Bond

Which of the following has the shortest C-H bond?

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Predominate Mechanism

Which reaction mechanism predominates in the reaction below?

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Determine the Structure

Determine the structure of an unknown compound with the molecular formula C8H12O that has 5 signals in the H NMR spectrum and shows the following IR absorptions:

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