Practice free Aldehyde ketones & carboxylic Acid (Chemistry) NEET multiple-choice questions online with instant answers and detailed explanations. No login required.
Electrolytic reduction with lead cathode of oxalic acid yields :
During the electrolytic reduction of oxalic acid (COOH-COOH) with a lead cathode, the oxalic acid is reduced to glycollic acid (COOH-CH2OH) and glyoxalic acid (COOH-CHO) as the two main products.
Aceto acetic ester behaves as:
Acetoacetic ester (CH3COCH2COOCH3) behaves as both a keto compound, due to the presence of the keto group (>C=O), and as an unsaturated hydroxy compound, due to the presence of an enol form stabilized by intramolecular hydrogen bonding.
Stinges of bees, red ant and wasps contain :
(b) Stinges of bees and wasps contain formic acid.
Oxalic acid may be distinguished from tartaric acid by :
(b) Tartaric acid reduces Tollens reagent.
When is reduced by LiAlH4, the compound obtained is :
(b) LiAlH4 reduces -COOH to -CH2OH but does not influence
The compound that does NOT librate CO2, On treatement with aqueous sodium bicarbonate solution, is :
A compound A when reacted with PCl5 and then with ammonia gave B. B when treated with bromine and caustic potash produced C. C on treatement with NaNO2 and HCl at C and then boiling produced orthocresol. Compound A is:
The correct statement regarding a carbonyl compound with a hydrogen atom on its alpha-carbon, is
The process of rapid equilibrium between a carbonyl compound with a hydrogen atom on its alpha-carbon and its corresponding enol form is known as keto-enol tautomerism. This tautomerism is an important phenomenon in organic chemistry, as it affects the reactivity and properties of the compounds involved.
The product formed by the reaction of an aldehyde with a primary amine is
Reaction of a carbonyl compound with one of the following reagents involves nucleophilic addition followed by the elimination of water. The reagent is
Reaction of carbonyl compounds with ammonia derivatives give addition product followed by the elimination reaction. Slightly acidic medium generate a nucleophilic centre for the attack of weak base like ammonia derivatives.
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