Chemistry - Carboxylic acid and their Derivatives Question with Solution | TestHub

Explain Question: The question is asking about the incorrect statement.

Concept: The haloform test is a chemical test used to identify compounds containing a methyl ketone (R${\mathrm{COCH}}_3$ ) or an aldehyde like acetaldehyde ( ${\mathrm{CH}}_3\mathrm{CHO}$ ). The Tollen's test is a qualitative laboratory test that distinguishes aldehydes from ketones by their ability to be oxidized by Tollens' reagent, producing a characteristic silver mirror on the inside of the test tube.

Solution:

(A) Acetic acid on treatment with ${\mathrm{X}}_2$ and NaOH undergo acid base reaction

(B) Benzaldehyde gives Tollen's reagent test

(C) Aromatic aldehyde do not respond to Fehling's test

(D) Carbonyl compound give 2,4-DNP test.

Final Answer: (BC)