Which of the following has the maximum boilin | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) The boiling point of alkanes depends on the surface area of the molecule. As the branching in an alkane increases,its surface area decreases,which

Vedclass · Accepted Answer

$CH_3-CH_2-CH_2-CH_2-CH_3$ (n-pentane)

Vedclass · Answer

(A) The boiling point of alkanes depends on the surface area of the molecule. As the branching in an alkane increases,its surface area decreases,which leads to weaker van der Waals forces of attraction. Therefore,the boiling point decreases as branching increases. Comparing the isomers of pentane $(C_5H_{12})$: $1$. $n$-pentane (straight chain) has the maximum surface area and thus the highest boiling point. $2$. Isopentane ($2$-methylbutane) has one branch. $3$. Neopentane ($2$,$2$-dimethylpropane) has two branches (most branched). Among the given options,$n$-pentane is a straight-chain isomer with no branching,giving it the largest surface area and the highest boiling point.

Which of the following has the maximum boiling point $(B.P.)$?

Similar Questions

The most volatile alkane is

The sodium salt of which acid is required for the preparation of propane by decarboxylation? Write the chemical equation for the reaction.

The most important method of preparation of hydrocarbons of lower carbon number is

Which of the following statements is true?

How does the combustion of alkanes (petrol) cause pollution?

Vedclass Test Series

Exam Paper Generator

Online Exam Module