What is the definition of a metal ore?

AQA Chemistry C5 part A

Quiz
•
Chemistry
•
9th Grade
•
Hard
David Williams
FREE Resource
100 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Any rock that contains a metal.
A rock from which it is economical to extract a metal.
A pure metal found in the ground.
A compound containing a metal and oxygen.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the context of extracting metals from their oxides, what is reduction?
The removal of oxygen from a compound.
The addition of oxygen to a compound.
The reaction of a metal with water.
The melting of a metal oxide.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of the reactivity series?
To list metals in order of their melting points.
To list metals in order of their density.
To list metals in order of their reactivity.
To list metals in alphabetical order.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When a metal from Group 1, like potassium, reacts with water, what are the products?
A metal oxide and hydrogen.
A metal hydroxide and hydrogen.
A metal carbonate and water.
A salt and water.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the trend in reactivity of the alkali metals as you go down Group 1?
The reactivity decreases.
The reactivity stays the same.
The reactivity increases.
The reactivity increases and then decreases.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What gas is produced when a reactive metal like magnesium reacts with a dilute acid?
Oxygen.
Carbon dioxide.
Chlorine.
Hydrogen.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is it better to use dilute acid rather than water to compare the reactivity of metals like zinc and iron?
Their reactions with water are very fast and dangerous.
Their reactions with water are very slow and difficult to compare.
They do not react with acid at all.
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