Rank the following substances in decreasing o | vedclass

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

Question

(A) The heat of combustion is directly proportional to the number of carbon atoms.When the number of carbon atoms is the same,the heat of combustion i

Vedclass · Accepted Answer

$A > B > C$

Vedclass · Answer

(A) The heat of combustion is directly proportional to the number of carbon atoms.When the number of carbon atoms is the same,the heat of combustion is inversely proportional to the degree of branching (more branching leads to greater stability,thus lower heat of combustion).All three structures ($A$,$B$,and $C$) are isomers of hexane $(C_6H_{14})$.Structure $A$ is $n$-hexane (no branching).Structure $B$ is $2,4$-dimethylbutane (two branches).Structure $C$ is $2,3$-dimethylbutane (two branches,but more compact/stable than $B$).Comparing stability: $A Therefore,the order of heat of combustion is $A > B > C$.

Rank the following substances in decreasing order of heat of combustion (most exothermic $\to$ least exothermic).

Similar Questions

Which of the following statements is correct about $A$ and $B$?

Which of the following pairs represent a pair of diastereomers?

Arrange the following compounds in decreasing order of their acidic strength:

Which of the following exhibits geometrical isomerism?

Among the given compounds,the correct order of enol content is:

Vedclass Test Series

Exam Paper Generator

Online Exam Module