>
Time management is very much important in IIT JAM. The eduncle test series for IIT JAM Mathematical Statistics helped me a lot in this portion. I am very thankful to the test series I bought from eduncle.
Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Ankit Singh posted an Question
September 19, 2020 • 21:03 pm
![]()
30 points
30 points
- IIT JAM
- Chemistry (CY)
The correct order of boiling point is oh oh oh cl br (id (111) () (a) ii> iii (c) ii>i> ii which of the following is not true about h,0 molecule? (b) iii> ii >
The correct order of boiling point is OH OH OH Cl Br (ID (111) () (a) II> III (c) II>I> II Which of the following is not true about H,0 molecule? (b) III> II > I (d) I1I>I> II
2 Answer(s)
Answer Now
- 0 Likes
- 2 Comments
- 0 Shares
-
![comment-profile-img]()
>
-
![comment-profile-img]()
>
Priyanshu kumar Best Answer
Option B 3>2>1
![eduncle-logo-app]()
but hydrogen bonding increase bp increase
![eduncle-logo-app]()
please explain
![eduncle-logo-app]()
Here hydrogen bonding and eletronegativity of halogens are not the deciding factors for boling point comparison
![eduncle-logo-app]()
Here boiling points of these molecules depend on dispersion forces or vanderwaal forces
Do You Want Better RANK in Your Exam?
Start Your Preparations with Eduncle’s FREE Study Material
- Updated Syllabus, Paper Pattern & Full Exam Details
- Sample Theory of Most Important Topic
- Model Test Paper with Detailed Solutions
- Last 5 Years Question Papers & Answers
Sign Up to Download FREE Study Material Worth Rs. 500/-
Priyanshu kumar![best-answer]()
The boiling point of these compounds depend on other factors such as: Vander Waal forces, Dispersion forces etc. In dispersion forces, as the molecule has more molecular weight, i.e., it has more electrons, then these forces will get stronger. It is because of the increases the temporary dipoles that are set up. This is why the boiling points increase as the molecular weight of the compound increases. In the given compounds, o-bromophenol has the highest molecular weight, thus highest boiling point will be of o-bromophenol, then o-chlorophenol and o-fluorophenol having the least molecular weight will have the least boiling point. Therefore, Order of Boiling Point is: (III)>(II)>(I)