Question

Which among the following halogen exists in liquid state at room temperature?

• A. Fluorine
• B. Chlorine
• C. Bromine
• D. Iodine

Answer 1

The Correct Option is C

The physical state of halogens at room temperature is contingent upon intermolecular forces and molecular weight. At ambient temperatures, halogens exhibit diverse states: some are gaseous, one is liquid, and one is solid. A concise breakdown follows:

• Fluorine (F₂): Exists as a pale yellow gas at room temperature.
• Chlorine (Cl₂): Appears as a greenish-yellow gas at room temperature.
• Bromine (Br₂): Is a dark red-brown liquid at room temperature. This is attributed to its larger atomic size and more potent van der Waals forces relative to fluorine and chlorine, establishing it as the sole liquid halogen under standard conditions.
• Iodine (I₂): Presents as a dark purple solid at room temperature.

Consequently, Bromine is identified as the halogen that is in a liquid state at room temperature.