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Which of the following is the odd one out: Copper, Iron, Mercury, Aluminium?
Mercury
Iron
Copper
Aluminium
Mercury
Identify the physical state of the given elements at room temperature to spot the odd one out.
Identify the physical state of the given elements at room temperature to spot the odd one out.
Examine the Options
Look at the physical state of Copper, Iron, Mercury, and Aluminium at standard room temperature.
Compare States of Matter
Copper, Iron, and Aluminium are solid transition and post-transition metals, whereas Mercury is a liquid metal.
B: Iron is a solid metal at room temperature, C: Copper is a solid metal at room temperature, D: Aluminium is a solid metal at room temperature.
A is correct because Mercury is the only metal among the options that exists in a liquid state at room temperature.
Always consider basic scientific properties such as physical state, valence, or magnetic properties when elements or substances are listed in classification questions.
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