See Figure 9-8. If you wanted to ONLY form Alkene 2 in an E2 reaction (not part of a product mixture), you would use A B 2 can ONLY be formed as part of a product mixture

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Alkynes

Alkynes are organic compounds that contain at least one triple bond between carbon-carbon atoms. They are a series of unsaturated compounds with a general molecular formula, CnH2n-2.