COMEDK · Chemistry · 28. Carboxylic Acid Derivatives
Choose the incorrect statement from the following.
- A Acetic acid does not reduce Fehling's solution
- B Acetic acid gives effervescence with aqueous \(\mathrm{NaHCO}_3\) solution
- C Acetic acid on reaction with HI and red P at 473 K gives iodoethane
- D Acetic acid is a weaker acid than formic acid
Answer & Solution
Correct Answer
(C) Acetic acid on reaction with HI and red P at 473 K gives iodoethane
Step-by-step Solution
Detailed explanation
(1) Correct: Acetic acid lacks an aldehyde group, so it does not reduce Fehling's solution. (2) Correct: Acetic acid reacts with \(NaHCO_3\) releasing \(CO_2\), causing effervescence: \(CH_3COOH + NaHCO_3 \to CH_3COONa + H_2O + CO_2\uparrow\) (3) Incorrect: Red P/HI reduces…
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