Header image- extracting metals quiz- an open cast metal mine

Extracting metals quiz

Answer all the questions below then hit the check answer button and scroll down to get your score.

unreactive metals are found as elements in the Earth's crust and can be mined.

1. Which metals are often found as pure elements in the Earth's crust due to their low reactivity?

, copper


2. Which process is used to extract aluminium from its ore?




3. Which of the following metals can be extracted from its ore using hydrogen gas.



Magnesium
The method used to extract a metal depends on its position in the reactivity series- teacher giving a lesson to her class.

4. Smelting is when a metal ore is heated to a high temperature with a agent such as carbon or carbon monoxide.

5. Metals above carbon in the reactivity series are extracted from their ores using while an unreactive metal such as can be extracted from its ore by heating with hydrogen gas.

6. Which of the following best describes phytomining

Using bacteria to extract metals from ores
Using plants to absorb metals, then burning them to produce ash containing metal compounds
Extracting metals by heating ores with carbon
Extracting metals by dissolving ores in water
Comic style image showing phytomining

7. In bioleaching which type of organism is used to release metals ions into solution?



Fungi

8. Which of the following is an advantage of bioleaching and phytomining?

They require large amounts of energy
They produce 100% pure metals directly
They are environmentally friendly and work on low-grade ores
They are very fast processes

9. A major disadvantage of bioleaching is that it is a very process.

10. Which of the following is true about the reactivity series and extraction of metals?

Metals above carbon are extracted by smelting
Metals below hydrogen are always found as pure elements
Metals below carbon cannot be extracted
Metals above carbon require electrolysis for extraction