Question

$I$. Methanol (${CH}_{3}OH$) has a lower boiling point than that of propane ($C_3{H}_8$).
$II$. Molecules of higher molecular weight have lower kinetic energy than lower molecular weight molecules when the different substances are at the same temperature.

• A. Statement $I$ is true, Statement $II$ is true
• B. Statement $I$ is true, Statement $II$ is false
• C. Statement $I$ is false, Statement $II$ is true
• D. Statement $I$ is false, Statement $II$ is false

Answer 1

The correct option is D Statement $I$ is false, Statement $II$ is false

Statement 1 - Methanol has higher boiling point than propane because of hydrogen bonding in Methanol.

Statement 1 is false.

Statement 2 Total Kinetic energy of molecule depends on temperature. So at same temperatue, both molecules will have same Kinetic Energy.

Statement 2 is false.

Ans: Statement 1 is false, Statement 2 is false.