JEE · NEET Previous Year Question
The correct order of decreasing acid strength of trichloroacetic acid (a), trifluoroacetic acid (b), acetic acid (c) and formic acid (d) is
Topic: NEET PYQ
Answer: A. Full step-by-step solution below.
- A
- B
- C
- D
Correct answer: A
Solution
(a) As −I effect increases, COOH group becomes more electron deficient and tendencyto loose ions increases i. e., acid strength increases. As effect increases, acid strength decreases. Thus, correct order of acid strength is
HCOOH COOH (B) (A) (D) (C)
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