GK
ELEMENTS COMPOUNDS SUBSTANCES METALS AND NON METALS
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
Al
|
|
|
Fe
|
|
|
Zn
|
|
|
Hg
|
Detailed explanation-1: -Mercury is the only metal that is liquid at normal temperatures.
Detailed explanation-2: -Mercury is both a liquid at room temperature (as it has a very low melting point of-39C) and a metal. We tend to assume metals are all solids but they are not.
Detailed explanation-3: -Mercury is the metal which exists as a liquid at room temperature, while bromine is the non-metal which exits as a liquid at room temperature. Q.
Detailed explanation-4: -Mercury (Hg) is the metal that exists in liquid state at room temperature.
Detailed explanation-5: -Most of the metals are solids under “ordinary” conditions (i.e., 25ºC, 1 atmosphere of pressure, etc.), with the exception of mercury (Hg, element 80), which solidifies at-39ºC, and is a freely-flowing liquid at room temperature.