Question

A metal and a non-metal that exists in liquid state at the room temperature are respectively :

• A. Bromine and Mercury
• B. Mercury and Iodine
• C. Mercury and Bromine
• D. Iodine and Mercury

Answer 1

The Correct Option is C

Step 1: Understanding the state of metals and non-metals at room temperature:
Most metals are solid at room temperature, but there are exceptions. Similarly, many non-metals are gases or solids at room temperature, but some exist as liquids.

Step 2: Identifying the metal that exists in liquid form at room temperature:
The only metal that exists in liquid form at room temperature is Mercury (Hg). It has a melting point of -38.83°C, which is well below room temperature, so it remains liquid at room temperature.

Step 3: Identifying the non-metal that exists in liquid form at room temperature:
The non-metal that exists in liquid form at room temperature is Bromine (Br). Bromine is a halogen with a melting point of -7.2°C and a boiling point of 58.8°C, so it remains liquid at room temperature.

Step 4: Conclusion:
The metal and non-metal that exist in liquid form at room temperature are Mercury and Bromine.