Assertion (A): Among isomeric pentanes, 2, 2-dimethylpentane has highest boiling point.
Reason (R): Branching does not affect the boiling point.
(i) Both A and R are correct and R is the correct explanation of A.
(ii) Both A and R are correct but R is not the correct explanation of A.
(iii) Both A and R are not correct.
(iv) A is not correct but R is correct.
Assertion (A): Among isomeric pentanes, 2, 2-dimethylpentane has highest boiling point.
Reason (R): Branching does not affect the boiling point.
(i) Both A and R are correct and R is the correct explanation of A.
(ii) Both A and R are correct but R is not the correct explanation of A.
(iii) Both A and R are not correct.
(iv) A is not correct but R is correct.
This is a assertion and reason answer type question as classified in NCERT Exemplar
(iii) With the branching the boiling decreases due to the decrease in surface area which leads to decrease its van there Waals force.
Upvote 
Similar Questions for you
HBr adds to alkene in accordance with Markovnikov's rule.
Delocalisation of
To study Hydrocarbons for NEET, you can use the Hydrocarbons Class 11th NCERT solutions PDF.
Alkanes, Alkenes, Alkynes, and Aromatics hydrocarbons are the four main hydrocarbons.
Hydrocarbons are organic compounds made of only carbon and hydrogen.
Taking an Exam? Selecting a College?
Get authentic answers from experts, students and alumni that you won't find anywhere else.
On Shiksha, get access to
Learn more about...
Chemistry NCERT Exemplar Solutions Class 11th Chapter Thirteen 2025
View Exam DetailsMost viewed information
SummaryDidn't find the answer you were looking for?
Search from Shiksha's 1 lakh+ Topics
Ask Current Students, Alumni & our Experts
Have a question related to your career & education?
See what others like you are asking & answering