Discussion
State whether the following is true or false.
Simple distillation can produce anhydrous ethanol from a fermented broth.
Answer: C
Correct answer: False
Ethanol and water form a minimum-boiling azeotrope at about 95.6 per cent ethanol by mass, and at that composition the vapour has the same composition as the liquid, so no number of distillation stages will separate them further. Anhydrous ethanol therefore needs a method that does not rely on a vapour-liquid difference - adsorption on molecular sieves being the modern choice.
No comment is present. Be the first to comment.
Loading…
Post your comment
Please log in or register to post a comment.
Examination Categories
- SSC Exams
- Banking Exams
- Teaching Exams
- Civil Services Exams
- Railways Exams
- Engineering Recruitment Exams
- Defence Exams
- State Government Exams
- Police Exams
- Insurance Exams
- Nursing Exams
- Other Government Exams
- NRA CET
- PG Entrance Exams
- Campus Placement
- MBA Entrance Exams
- CUET and UG Entrance
- Judiciary Exams
- Regulatory Body Exams
- Software Development