A) formic acid
B) acetic acid
C) trichloroacetic acid
D) trifluoroacefic acid
Correct Answer: D
Solution :
Due to the strongest \[-I\] effect of F-atom \[C{{F}_{3}}COOH\] is strongest acid than rest other acids. Decreasing order of acidity\[C{{F}_{3}}COOH>CC{{l}_{3}}COOH>C{{H}_{3}}COOH>HCOOH\]
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