Aldehydes, Ketones and Carboxylic Acids questions
1139 published questions with worked solutions.
- Which of the following reacts with KCN to form benzoin?
- [IIT 2012] The carboxyl (–COOH) functional group is genuinely present in
- Benzaldehyde reacts with NH₃ to give
- Acetophenone, when reacted with the base sodium ethoxide (C₂H₅ONa), yields a stable compound (by base-catalysed self-aldol...
- Benzaldehyde reacts with PCl₅ to give
- Slow heating of salicylic acid gives
- Benzaldehyde, when heated with concentrated KOH solution, gives
- Chlorine reacts with benzaldehyde to give
- [IIT 2009] Among a chlorophenol (I), an isomeric chlorophenol (II), a chlorobenzoic acid (III) and a methylbenzoic (toluic) acid...
- The reaction C₆H₅CHO + CH₃CHO —dil. NaOH→ C₆H₅CH=CH–CHO is called the
- Which statement regarding acetaldehyde and benzaldehyde is **wrong**?
- [AIEEE 2004] For the correct order of acidic strength of (I) C₆H₅COOH, (II) *o*-O₂N–C₆H₄–COOH, (III) *p*-O₂N–C₆H₄–COOH, (IV)...
- *p*-Toluamide (CH₃–C₆H₄–CONH₂) is treated with (1) NaOH/Br₂ and then (2) benzoyl chloride (C₆H₅COCl). The product is
- Which of the following will show a **negative** test with phenylhydrazine (i.e. will not form a hydrazone)?
- Which are generally used for preparing crystalline derivatives of aldehydes and ketones?
- Toluene, on oxidation with air in the presence of V₂O₅, yields
- Which aromatic acid among the following is **weaker** than simple benzoic acid?
- What products form when an equimolar mixture of benzaldehyde and formaldehyde is heated with concentrated NaOH?
- C₆H₅CHO differs from an aliphatic aldehyde in its reaction towards
- [IIT 1992] Hydrogenation of benzoyl chloride in the presence of Pd on BaSO₄ (a poisoned/Rosenmund catalyst) gives
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