16 Questions
Which metal is the least reactive in the reactivity series provided?
Silver
Which metal is the most reactive based on the reactivity series mentioned in the text?
Potassium
Which metal does not corrode and is used for hot water pipes?
Copper
Why are carbon and hydrogen included in the reactivity series according to the text?
They have non-metallic properties.
Based on the text, which metal reacts vigorously with water and steam?
Calcium
How do scientists determine the order of reactivity of metals according to the text?
By their reactions with substances like water and acids.
In terms of reactivity, which two metals are suitable for food cans?
Aluminium and Copper
Why is it important to arrange metals according to their reactivity as mentioned in the text?
To choose appropriate metals for different uses.
Which metal reacts violently with cold water to form sodium hydroxide and hydrogen gas?
Potassium
What is the product of the reaction between magnesium and cold water?
Magnesium hydroxide
Which metal reacts slowly with cold water to produce hydrogen gas and its hydroxide?
Lead
What happens when a metal reacts with steam, as described in the text?
It forms a metal hydroxide and hydrogen gas.
Which metal reacts explosively with steam, and therefore, should not be used in a school laboratory?
Zinc
What is the main product of the reaction between sodium and cold water?
Sodium hydroxide
Which metal produces hydrogen gas that can catch fire and explode when reacting with water?
Potassium
What is the product of the reaction between calcium and water?
Calcium hydroxide
Test your knowledge on the reactivity series of metals by placing calcium, copper, iron, lead, magnesium, potassium, silver, sodium, and zinc in the correct order. Identify the most reactive and least reactive metals based on their chemical reactions.
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