State whether the following statements are True or False :

1. Sodium is more reactive than magnesium.
2. Magnesium reacts with cold water.
3. All metals exist in solid form at room temperature.
4. Gallium has a low melting point.
5. Gold is alloyed with copper to make it hard.

1. True
2. False. Magnesium does not react with cold water. It reacts with hot water to form magnesium hydroxide and hydrogen.
3. False. It is one of the physical properties of metals that they exist in solid form at room temperature. Except for mercury and gallium, which are in a liquid state. Hence, all metals are not solid at room temperature.
4. True.
5. True.

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Updated on: 17-Mar-2023

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