18 Questions
Which property makes metals like mercury and potassium good conductors of heat?
High boiling point
Which metal is an exception as it has a very low melting point compared to other metals?
Gallium
Why are nonmetals generally not good conductors of electricity?
They lack free electrons for conductivity
Which type of substance exhibits a metallic luster in its solid state?
Metals
Which nonmetal is the exception by being a good conductor of electricity?
Carbon
What property allows metals to conduct electricity both in liquid and solid states?
Conductivity
What property of diamonds makes them a poor conductor of electricity?
Lack of free electrons
Which element is known for its high thermal conductivity?
Mercury
Which substance is shiny, has a low melting point, and is not a good conductor of electricity?
Graphite
What property of metals decreases with exposure to atmospheric oxygen?
Conductivity
Which type of substance has the property of brittleness?
Nonmetals
What property of metals allows them to change shape without breaking?
Malleability
What is the purpose of dipping the copper wire in ferrous sulphate solution?
To observe if a reaction takes place between copper and ferrous sulphate
How can one recognize that a reaction has taken place in this experiment?
By noting a change in the appearance or properties of the metals
What is the significance of using reactivity series of metals in this experiment?
To identify which metal is more reactive than another
Why are oxygen, water, and acids not useful in determining the relative reactivity of all metals?
Because they react differently with different metals
What is the purpose of observing continually at fixed intervals during the experiment?
To document any changes that may occur over time
How does the displacement reaction of metals with solutions serve as a useful tool?
To predict how one metal will react with a solution of another metal's salt
This quiz tests your knowledge on metals such as mercury, iron, sodium, and potassium, focusing on their ability to conduct heat and be cut. Learn about the properties of these metals and their exceptions when it comes to melting and cutting. Explore the characteristics that make these metals stand out in terms of heat conduction and malleability.
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