Formula of urea is – (A) HN-COâ??-NH (B) KCNO (C) Hâ??N-CO-NHâ?? (D) Hâ??N-CO-NHâ??

by

Points to Remember:

  • The question tests knowledge of the chemical formula of urea.
  • Understanding the structure and bonding in urea is crucial.
  • Correct identification of the formula is essential.

Introduction:

Urea, officially known as carbamide, is an organic compound with the chemical formula CO(NHâ??)â??. It is a white, crystalline, and highly soluble compound widely used in fertilizers, animal feed, and various industrial applications. Its discovery by Hilaire Rouelle in 1773 marked a significant milestone in organic chemistry. Understanding its chemical formula is fundamental to understanding its properties and applications.

Body:

Analyzing the Given Options:

Let’s analyze each option provided:

  • (A) HN-COâ??-NH: This formula is incorrect. It suggests an asymmetrical structure and incorrect bonding. The carbon atom is shown with five bonds, which is impossible.

  • (B) KCNO: This is the formula for potassium cyanate, a completely different compound. While it might be involved in some urea synthesis pathways, it is not the formula for urea itself.

  • (C) Hâ??N-CO-NHâ??: This formula is also incorrect. While it represents the correct atoms, the arrangement and bonding are wrong. It implies a different arrangement of atoms than what exists in urea.

  • (D) Hâ??N-CO-NHâ??: This is the correct chemical formula for urea. It accurately represents the two amide groups (-NHâ??) bonded to a carbonyl group (=CO). This structure accurately reflects the molecule’s properties and behavior.

Diagrammatic Representation:

A simple diagram can illustrate the correct structure:

Hâ??N
|
Hâ??N-C=O
|

This shows the central carbon atom double-bonded to an oxygen atom and single-bonded to two nitrogen atoms, each of which is bonded to two hydrogen atoms.

Conclusion:

In summary, the correct chemical formula for urea is (D) Hâ??N-CO-NHâ??. Options (A), (B), and (C) are incorrect due to incorrect bonding, atom arrangement, or representing a different compound altogether. Accurate knowledge of chemical formulas is crucial in various fields, including agriculture (fertilizer production), medicine (drug synthesis), and industrial chemistry. Continued research and development in organic chemistry are essential for discovering and utilizing the potential of compounds like urea in a sustainable and responsible manner, contributing to advancements in various sectors.

JPSC Notes brings Prelims and Mains programs for JPSC Prelims and JPSC Mains Exam preparation. Various Programs initiated by JPSC Notes are as follows:- For any doubt, Just leave us a Chat or Fill us a querry––