六、回答下列問題： (1) 試排列下列化合物之酸性強弱： A：ICH2CO2H； B：CH3CO2H； C：FCH2CO2H；D：ClCH2CO2H 【1分】

(c) Disulfur difluoride, S2F2, exists as two structural isomers. One isomer is analogous in structure to dioxygen difluoride, O2F2, but the second, more thermodynamically stable isomer, has a structure in which the two sulfur atoms are in different chemical environments. Draw a Lewis structure of the more stable isomer of disulfur difluoride, S2F2, and sketch or describe its three-dimensional shape.

六、回答下列問題： (1) 試排列下列化合物之酸性強弱： A：ICH₂CO₂H； B：CH₃CO₂H； C：FCH₂CO₂H；D：ClCH₂CO₂H 【1分】

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