Extraction Of Metal And Metal

Question 1

What is the primary method used for the extraction of metals from ores?

Answer 1

Metallurgy

Question 2

True or False: Non-metals can be extracted using the same methods as metals.

Answer 2

False

Question 3

Fill in the blank: The process of removing metal from its ore is called _____.

Answer 3

extraction

Question 4

What is the main purpose of roasting in metal extraction?

Answer 4

To convert sulfide ores into oxides.

Question 5

Which metal is extracted using the Hall-Héroult process?

Answer 5

Aluminum

Question 6

What is the main source of iron for extraction?

Answer 6

Iron ore, primarily hematite (Fe2O3) and magnetite (Fe3O4)

Question 7

True or False: Carbon is often used as a reducing agent in the extraction of metals.

Answer 7

True

Question 8

What is the term for the process of separating metals from their ores using chemical reactions?

Answer 8

Hydrometallurgy

Question 9

Which non-metal is primarily obtained through the fractional distillation of air?

Answer 9

Oxygen

Question 10

What is the main use of the Bayer process?

Answer 10

To extract aluminum from bauxite ore.

Question 11

Identify the method: The extraction of gold using cyanide solution is known as _____.

Answer 11

cyanidation

Question 12

Which process involves the use of heat and a reducing agent to extract metals?

Answer 12

Smelting

Question 13

True or False: Electrolysis is used for the extraction of reactive metals.

Answer 13

True

Question 14

What is the primary raw material used for the extraction of phosphorus?

Answer 14

Phosphate rock

Question 15

Which non-metal is typically extracted from brine through electrolysis?

Answer 15

Chlorine

Question 16

What is the role of flux in the extraction of metals?

Answer 16

To remove impurities during smelting.

Question 17

Fill in the blank: The extraction of metals from their ores is often followed by _____ to purify the metal.

Answer 17

refining

Question 18

What is the primary method for extracting copper from its ores?

Answer 18

Bioleaching

Question 19

Which metal is extracted using the thermite reaction?

Answer 19

Aluminum

Question 20

True or False: Non-metals are generally more electronegative than metals.

Answer 20

True

Question 21

What is the purpose of leaching in metal extraction?

Answer 21

To dissolve the desired metal from its ore.

Question 22

Identify the extraction method: The process of extracting lithium from brine is known as _____.

Answer 22

evaporation

Question 23

What is the main environmental concern associated with metal extraction?

Answer 23

Pollution and habitat destruction

Question 24

Which non-metal is essential for the production of fertilizers?

Answer 24

Nitrogen

Question 25

Fill in the blank: The process of heating ores in the presence of air to remove sulfur is called _____.

Answer 25

calcination

Question 26

What is an example of a metal that is extracted using electrolysis?

Answer 26

Sodium

Question 27

True or False: The extraction of metals from their ores is a sustainable practice.

Answer 27

False