




















AI Mentor
Check Your IQ
Free Expert Demo
Try Test
Courses
Dropper NEET CourseDropper JEE CourseClass - 12 NEET CourseClass - 12 JEE CourseClass - 11 NEET CourseClass - 11 JEE CourseClass - 10 Foundation NEET CourseClass - 10 Foundation JEE CourseClass - 10 CBSE CourseClass - 9 Foundation NEET CourseClass - 9 Foundation JEE CourseClass -9 CBSE CourseClass - 8 CBSE CourseClass - 7 CBSE CourseClass - 6 CBSE Course
Offline Centres
Q.
What is the structural formula of ethanol?
see full answer
High-Paying Jobs That Even AI Can’t Replace — Through JEE/NEET
🎯 Hear from the experts why preparing for JEE/NEET today sets you up for future-proof, high-income careers tomorrow.
An Intiative by Sri Chaitanya
(Unlock A.I Detailed Solution for FREE)
Best Courses for You

JEE

NEET

Foundation JEE

Foundation NEET

CBSE
Detailed Solution
Basic Ethanol Formulas
Formula Type | Formula | Explanation |
Molecular Formula | C₂H₆O | Shows the total number of each type of atom in one molecule of ethanol |
Chemical Formula | C₂H₅OH | Most common way to write ethanol, showing the hydroxyl group (-OH) |
Condensed Structural Formula | CH₃CH₂OH | Shows how atoms are connected in a simplified way |
Empirical Formula | C₂H₆O | Simplest whole number ratio of atoms (same as molecular formula for ethanol) |
Structural Representations
Formula Type | Representation | Description | Uses |
Expanded Structural Formula | H-C-C-O-H with all H atoms shown | Shows every atom and bond explicitly | Understanding molecular structure |
Skeletal Formula | Line-angle structure | Shows carbon backbone as lines, OH group explicit | Advanced organic chemistry |
3D Formula | Tetrahedral arrangement | Shows three-dimensional shape of molecule | Physical chemistry studies |
Ethanol Reaction Formulas
Reaction Type | Formula | Explanation | Application |
Complete Combustion | C₂H₅OH + 3O₂ → 2CO₂ + 3H₂O | Ethanol burns in oxygen to produce carbon dioxide and water | Energy production, Class 10 |
Incomplete Combustion | C₂H₅OH + 2O₂ → 2CO + 3H₂O | Insufficient oxygen leads to carbon monoxide formation | Safety studies |
Fermentation | C₆H₁₂O₆ → 2C₂H₅OH + 2CO₂ | Glucose is converted to ethanol by yeast | Biochemistry, Class 12 |
Dehydration | C₂H₅OH → C₂H₄ + H₂O | Ethanol loses water to form ethene (requires catalyst) | Organic synthesis |
Oxidation Reactions of Ethanol
Oxidation Level | Formula | Product | Conditions |
Primary Oxidation | C₂H₅OH + [O] → CH₃CHO + H₂O | Acetaldehyde (ethanal) | Mild oxidizing agent |
Secondary Oxidation | CH₃CHO + [O] → CH₃COOH | Acetic acid (ethanoic acid) | Strong oxidizing agent |
Complete Oxidation | C₂H₅OH + 2[O] → CH₃COOH + H₂O | Direct conversion to acetic acid | Excess oxidizing agent |
Related Chemical Formulas
Compound | Formula | Relationship to Ethanol | Importance |
Ethanoic Acid (Acetic Acid) | CH₃COOH | Oxidation product of ethanol | Food industry, Class 10 |
Ethanolic KOH | KOH/C₂H₅OH | Potassium hydroxide dissolved in ethanol | Organic chemistry reactions |
Ethyl Acetate | CH₃COOC₂H₅ | Ester formed from ethanol and acetic acid | Solvent, esterification |
Acetaldehyde (Ethanal) | CH₃CHO | First oxidation product of ethanol | Intermediate in metabolism |
Isomerism and Alternative Formulas
Isomer Type | Formula | Name | Difference from Ethanol |
Functional Isomer | CH₃OCH₃ | Dimethyl ether | Different functional group (ether vs alcohol) |
Structural Formula | C₂H₆O | Same molecular formula | Both have same atoms, different arrangement |
Important Physical and Chemical Properties
Property | Value/Formula | Significance |
Molar Mass | 46.07 g/mol | Calculated from C₂H₆O |
Density | 0.789 g/cm³ | Less dense than water |
Boiling Point | 78.37°C | Due to hydrogen bonding |
Hydrogen Bonding | R-OH···H-OR | Explains physical properties |
Class-Specific Formula Applications
Class 10
- Basic Formula: C₂H₅OH
- Combustion: C₂H₅OH + 3O₂ → 2CO₂ + 3H₂O
- Key Focus: Recognition and simple reactions
Class 11-12
- Structural formulas: CH₃CH₂OH, skeletal formulas
- Mechanism reactions: SN1, SN2, elimination reactions
- Advanced applications: Esterification, oxidation mechanisms
Watch 3-min video & get full concept clarity
courses
No courses found
Ready to Test Your Skills?
Check your Performance Today with our Free Mock Test used by Toppers!
Take Free Test