Question

Which of the following is liquid at room temperature.

• A. $CH_{3}I$
• B. $CH_{3}Br$
• C. $C_{2}H_{5}Cl$
• D. $CH_{3}F$

Answer 1

Answer: (A)

$CH_{3}I$

Answer 2

$CH_{3}F,CH_{3}Cl,CH_{3}Br$ and $C_{2}H_{5}Cl$ are gases atroom temperature. $CH_{3}I$ is a liquid at roomtemperature and solidifies at –66.5°C.