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Form 3: Chapter 4(II)
Reactivity with Metals
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Magnesium is more reactive than zinc.
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1 point
True
False
Copper is less reactive than aluminium.
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1 point
True
False
Tin is less reactive than argentum.
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1 point
True
False
Carbon is more reactive than potassium.
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1 point
True
False
Hydrogen is less reactive than zinc.
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1 point
True
False
Calcium can be extracted from its oxide by heating it with carbon.
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1 point
True
False
Aluminium can be extracted from its metallic compounds through ____________.
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1 point
Direct heating
Electrolysis
Reduction of oxide with carbon
Copper can be extracted from its metallic compounds through ____________.
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1 point
Direct heating
Electrolysis
Reduction of oxide with carbon
Sodium can be extracted from its metallic compounds through ____________.
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1 point
Direct heating
Electrolysis
Reduction of oxide with carbon
Tin can be extracted from its metallic compounds through ____________.
*
1 point
Direct heating
Electrolysis
Reduction of oxide with carbon
Iron can be extracted from its metallic compounds through ____________.
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1 point
Direct heating
Electrolysis
Reduction of oxide with carbon
What is the function of potassium manganate (VII) in an experiment to investigate the reactivity of metals?
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1 point
To supply hydrogen gas
To supply carbon dioxide
To supply oxygen gas
What is the function of carbon in the extraction process of iron from its ore?
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1 point
As an oxidising agent
As a reducing agent
The following picture shows a reaction between zinc granules and hydrochloric acid. What is the gas released from the reaction?
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1 point
hydrogen gas
oxygen gas
carbon dioxide
The observation below shows the presence of a certain gas. Which gas is it?
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1 point
hydrogen gas
oxygen gas
carbon dioxide
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