1) Has a general formula CnH2n-2 a) alkane b) alkene c) alkyne d) benzene 2) Widely used as solvents, with a general formula R-OH a) alcohol b) ketone c) aldehyde d) carboxylic acid 3) What is the functional group which is present in vinegar? a) Amine b) Amide c) Carboxylic acid d) Ester

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