Question

Glycerol on oxidation with bismuth nitrate produces:
A. Glyceric acid
B. Glyoxylic acid
C. Oxalic acid
D. Meso oxalic acid

Answer 1

Hint: In order to answer the question, first we should know about the reactants and their properties, then only we should react to them to know about the products. Oxidation reaction occurs when Glycerol reacts with bismuth nitrate.

Complete step by step solution:
When Glycerol reacts with bismuth nitrate, then it produces mainly oxalic acid, meso oxalic acid, $ {C_3}{H_2}{O_5} $ ,Glyceric Acid and glyoxylic acid. It is an oxidation reaction, this reaction is basically loss of electrons.
Glycerol on oxidation with bismuth nitrate:-
 $ {(C{H_2}OH)_2}CHOH + Bi{(N{O_3})_3} \to {(COOH)_2}CO $
Reactant: Glycerol, also called glycerine or glycerine, is a simple polyol compound. It is a colourless, odourless, viscous liquid that is sweet-tasting and non-toxic. Whereas, Bismuth nitrate is a salt composed of bismuth in its cationic +3 oxidation state and nitrate anions. The most common solid form is the pentahydrate. It is used in the synthesis of other bismuth compounds. It is the only nitrate salt formed by a group 15 element, indicative of bismuth's metallic nature.
Products: And, the product of both Glycerol and bismuth nitrate is Meso oxalic acid, is an organic compound with formula $ {C_3}{H_2}{O_5} $ . Meso oxalic acid is both a dicarboxylic acid and a ketonic acid. This acid is also known as oxo malonic acid or keto malonic acid.
Glycerol is a trihydric alcohol whose IUPAC name is propane-1, 2, 3-triol. It gives different oxidation products depending on the nature of the oxidizing agent. With bismuth nitrate, it gives mainly meso oxalic acid .
Hence, the correct option is (D.) Meso oxalic acid.

Note:
Meso xalic acid can be also obtained artificially by hydrolysis of alloxan with baryta water, by warming caffeic acid with lead acetic acid derivation arrangement, or from glycerine diacetate and concentrated nitric acid neglected. The product can be obtained additionally by oxidation of tartronic acid or glycerol.