Question

The structural formula ${C_2}{H_5}OH$ represents:
A.Ethyl alcohol
B.Acetaldehyde
C.Propionic acid
D.Butanone

Answer 1

A structural formula showed a symbol for the atoms connected to represent chemical bonds one, two or three lines standing for single, double or triple bonds, respectively. Structures can be modified to represent three dimensional shapes of molecules. Structural formula is a graphic representation of the molecular formula.

Complete step by step answer:
The structural formula ${C_2}{H_5}OH$ is ethanol. It is the most known alcohol that is flammable, colorless liquid. It is used as solvent.
Here we see the structural formula of given compounds as below:
1.Ethanol: ${C_2}{H_5}OH$
2.Acetaldehyde: ${C_2}{H_4}O$
3.Propionic acid: $C{H_3}C{H_2}COOH$
4.Butanone: ${C_4}{H_8}O$

Hence, option (A) is the correct answer.

Additional information:
Ethanol is a primary alcohol that is ethane in which one of the hydrogens is substituted by a hydroxyl group. Ethanol is used in antiseptics, household cleaning products, and even varnishes. In this section, there are many uses of ethanol. It is produced by the process of fermentation, which is the chemical breakdown of sugar by yeast. It is polar due to the presence of the terminal hydroxyl group, so it dissolved in water.

Note: Here we remember that the molecular formula of ethanol is, indicating that ethanol contains two carbons and oxygen. It provides little more detail and indicates that there is a hydroxyl group at the end of 2-chain carbon. The $-OH$ group is characteristic of all alcohols. It is the form of alcohol containing beverages including beer, wine and liquor.