Aldehydes, Ketones and Carboxylic Acids questions
1139 published questions with worked solutions.
- The increasing order of the rate of HCN addition to compounds A–D, where A = HCHO, B = CH₃COCH₃, C = PhCOCH₃, D = PhCOPh, is:
- Which aldehyde cannot be obtained by Rosenmund's reaction?
- Paraldehyde is used as a:
- Ketones are less reactive than aldehydes because:
- Acetone and acetophenone can be identified by:
- Dry distillation of the barium (calcium) salt of a hexanedioic (adipic-type) diacid gives:
- Acetaldehyde undergoes self-condensation in the presence of aluminium ethoxide to give ethyl acetate. This reaction is called:
- The number of aldol reactions that occur in the given transformation, CH₃CHO + 4HCHO (conc. aq. NaOH)→ a...
- Which of the following is an example of aldol condensation?
- Formaldehyde can be distinguished from acetaldehyde by:
- Dialkyl cadmium reacts with a compound to form a ketone. The compound is:
- A six-membered cyclic polymer (alternating CH₂ and O units) is obtained when HCHO is allowed to stand; it is a white solid. The...
- Among the given compounds, the most susceptible to nucleophilic attack at the carbonyl group is:
- Which method is not used in the preparation of a ketone?
- Which of the following would undergo aldol condensation?
- When a ketone is condensed into an aldol, the reagent used is:
- The following reaction, CH₃COCl + H₂ (Pd/BaSO₄, xylene)→ CH₃CHO + HCl, is known by the name of:
- Which of the following reactions is a condensation reaction?
- Which can distinguish aldehydes and ketones?
- Ketones can be prepared by:
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