Question

Which of the following is an organic acid?
A. Sulphurous acid
B. Nitric acid
C. Hydrochloric acid
D. Formic acid

Answer 1

Hint: We can say organic acid as an organic compound that exhibits acidic properties. Certain of the generally organic acids are carboxylic acids, sulfanoic acids. Organic compounds in biological systems displaying the presence of organic groups are known as organic acids. Lactic acid, acetic acid, oxalic acid, uric acid, and malic acid are some of the common examples of organic acids.

Complete step by step answer:
We know that Sulfurous acid is the synthetic compound with the equation ${H_2}S{O_3}$ . There is no proof that sulfurous acid is found in solution, yet the particle has been identified in the gas stage. The conjugate bases of this subtle acid are, be that as it may, regular anions, bisulfite (or hydrogen sulfite) and sulfite. Sulfurous acid is a middle species in the production of acid rain from sulfur dioxide. We could draw the structure of sulfurous acid as,

Sulfurous acid is inorganic acid. Option (A) is incorrect.
As we know that formula of nitric acid is $HN{O_3}$ . Most economically accessible nitric acid has a grouping of \[68\% \] in water. At the point when the arrangement contains over 86% HNO3, it is alluded to as fuming nitric acid. Contingent upon the measure of nitrogen dioxide present, raging nitric acid is additionally portrayed as red fuming nitric acid at focuses above \[86\% \] , or white fuming nitric acid at fixations above \[95\% \] . We can draw the structure of nitric acid as,

Nitric acid is inorganic acid. Option (B) is incorrect.
We know that Hydrochloric acid is the water-based, or fluid, arrangement of hydrogen chloride gas. It is likewise the fundamental segment of gastric acid, an acid created normally in the human stomach to help digest food. We can draw the structure of hydrochloric acid as,

Hydrochloric acid is inorganic acid. Option (C) is incorrect.
We need to remember that the formic acid, efficiently named methanoic acid, is the least complex carboxylic acid, and has the chemical formula \[HCOOH\] . It is a significant transitional in compound blend and happens normally, most outstandingly in certain ants. "Formic" comes from the Latin word for subterranean insect, formica, alluding to its initial segregation by the refining of subterranean insect bodies. Mechanically, formic acid is delivered from methanol. We can draw the structure of formic acid is,

So, the correct answer is Option D.

Note: We must need to remember that the several organic acids such as succinic acid, oxalic acid, benzoic acid, isocitric and quinic acid play modest roles in the body.The acids present in fruits are utilized as preservatives due to their affinity to reduce the onset of bacterial degradation. Combination of acid and sugar in fruit, gives them an explicit flavour. We all know that fruits such as orange, lemon and limes show citric acid in them and they are known as citrus fruits.