Question

Which of the following interhalogen compounds is in liquid state at room temperature?

• A. ICl
• B. \( ClF_{3} \)
• C. \( BrF_{5} \)
• D. \( IF_{7} \)

Hint:

Most $XX'_3$ and $XX'_7$ are gases, while $BrF_5$ is a well-known liquid interhalogen.

Answer 1

The Correct Option is C

Step 1: Understanding the Question:
Interhalogen compounds exist in different physical states (gas, liquid, or solid) depending on their molecular weight and intermolecular forces.
Step 2: Detailed Explanation:
- \( ICl \): It is a ruby red solid at room temperature.
- \( ClF_{3} \): It is a colorless gas.
- \( BrF_{5} \): It is a colorless liquid at room temperature.
- \( IF_{7} \): It is a colorless gas.
Step 3: Final Answer:
Among the given options, \( BrF_{5} \) is the compound that exists in a liquid state at room temperature.