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Addition of excess HCl to 2-methyl-3-heptyne would produce: 2-methyl-3,3-dichloroheptane 2-methyl-2,3-dichloroheptane
I II
2-methyl-4,4-dichloroheptane 2-methyl-3,4-dichloroheptane
III IV
2-methyl-3-chloroheptene
V
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