Question

Liquid metal at ordinary temperature is

• A. Mg
• B. Cu
• C. Cr
• D. Hg

Hint:

Mercury (Hg) is the only metal that remains liquid at ordinary temperatures, which is why it is used in thermometers and barometers.

Answer 1

The Correct Option is D

Step 1: Understanding the Concept of Liquid Metal at Ordinary Temperature
At ordinary temperature, most metals are in solid form. However, mercury (Hg) is a metal that is liquid at room temperature (around 25°C), unlike other metals that require higher temperatures to melt.

Step 2: Identifying the Liquid Metal
Mercury is the only metal that is in liquid form at ordinary temperatures. It is unique in this property.

Step 3: Why the Other Options Are Incorrect
- (A) Mg (magnesium) is a solid metal at ordinary temperature.
- (B) Cu (copper) is a solid metal at ordinary temperature.
- (C) Cr (chromium) is a solid metal at ordinary temperature.
Thus, the correct answer is option (D) Hg.