Which one of the following has the minimum bo | vedclass

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

Question

(D) The boiling point of hydrocarbons depends on molecular weight,molecular shape,and branching.
For isomers,the boiling point decreases as the degre

Vedclass · Accepted Answer

Isobutane

Vedclass · Answer

(D) The boiling point of hydrocarbons depends on molecular weight,molecular shape,and branching.
For isomers,the boiling point decreases as the degree of branching increases because the surface area decreases,leading to weaker van der Waals forces.
Comparing the given compounds: $1-$Butene $(C_4H_8)$,$1-$Butyne $(C_4H_6)$,$n-$Butane $(C_4H_{10})$,and Isobutane $(C_4H_{10})$.
Isobutane ($2-$methylpropane) is a branched isomer of $n-$butane.
Among the alkanes,branched isomers have lower boiling points than straight-chain isomers.
Comparing the boiling points: $n-$Butane $(\approx 272.5 \ K) > 	ext{Isobutane} (\approx 261.4 \ K)$.
$1-$Butyne and $1-$Butene have higher boiling points due to the presence of $\pi$ bonds and higher molecular polarity compared to alkanes.
Therefore,Isobutane has the minimum boiling point among the given options.

Which one of the following has the minimum boiling point?

Similar Questions

The product$(s)$ from the above reaction will be

What is the major product of the following reaction?

Which of the following products cannot be obtained in the above reaction?

Structure of $A$ is

The maximum number of bromine atoms present in the final product $P$ upon complete bromination is

Vedclass Test Series

Exam Paper Generator

Online Exam Module