Some metals are extracted from their ores after some preliminary treatments by electrolysis (L), some by thermal decomposition(T), some by a combination of both processes (TL). Which set-up in the following for the extraction of iron, copper, and aluminium is correct?

Folafoluwa2007

1 year ago

The correct answer is:

E. Iron (T), Copper (L), Aluminium (TL)

Explanation:

1. Iron (T): Iron is extracted from its ore (hematite or magnetite) by thermal decomposition in a blast furnace using coke as a reducing agent. Electrolysis is not used in iron extraction.


2. Copper (L): Copper can be extracted from its sulfide ores by roasting and smelting, followed by electrolysis for purification. Hence, it involves electrolysis (L).


3. Aluminium (TL): Aluminium is extracted from bauxite through the Bayer process (to purify alumina) and then reduced using electrolysis in the Hall-Héroult process. This extraction involves both thermal processing and electrolysis, so it is TL.

Queennette2

3 years ago

What exactly is the meaning of T?

BARNABAS

1 year ago

pls note: Elements very high up in the activity series e.g Na, K and aluminum e.t.c are usually extracted by electrolysis because they are very reactive
while iron is extracted by heating in a blast furnace( thermal decomposition)

killerbeing

1 year ago

This question does nor seem complete to me

mersayy

2 years ago

I dont get where y'all are seeing that copper is extracted by electrolysis....Please read your book well.
Copper is obviously extracted by reduction and purified by electrolysis.

Thardan

2 years ago

The correct setup for the extraction of ion, copper, and aluminium is as follows:

For iron: The extraction of iron from its ore typically involves reduction by carbon in a blast furnace. This process does not involve electrolysis. Hence, iron should be (L) - extracted using a non-electrolytic process.

For copper: Copper is commonly extracted from its ore through electrolysis. Therefore, copper should be (T) - extracted using electrolysis.

For aluminium: Aluminium is also commonly extracted from its ore through electrolysis in the Hall-Héroult process. Hence, aluminium should also be (T) - extracted using electrolysis.

So, the correct setup would be:

D. Iron (L), copper (T), aluminium (T).

absolute213

4 years ago

pls the answer is wrong help make amendments and explain your points

sufyanice

9 years ago

what's d answer

Sammyporsche123

3 years ago

omo

peter samson

9 years ago

EXPLANATION PLEASE

aikhoje precious

9 years ago

The selected answer is wrong:

copper is extracted by heating from copper pyrite before it is obtained purely from electrolysis like wise aluminium from bauxite

REF: new school chemistry, page 463-491

nawaforyou

3 years ago

Metals Extraction: Setup Summary.


Daniel Ezinna
Some metals are extracted from their ores after some preliminary treatments by electrolysis (L), some of both processes (TL). Which set-up in the following for the extraction of ion, copper and aluminium is correct?
A. lron (L), copper (L) aluminium (T)
B. lron (T) copper (L) aluminium (T)
C. lron (TL) copper (TL) aluminium (TL)
D. Iron (L) copper (T) aluminium (T)
E. lron (T) copper (L), aluminium (TL)

The correct setup for the extraction of iron, copper, and aluminium is option D: Iron (L), copper (T), aluminium (T).

Explanation:

Iron is extracted using the electrolysis process (L), where the iron ore is dissolved in a suitable electrolyte and an electric current is passed through it to obtain pure iron.
Copper is also extracted using the electrolysis process (L), where copper ore is dissolved in a suitable electrolyte and an electric current is passed through it to obtain pure copper.
Aluminium, on the other hand, is extracted using a different process called the Hall-Héroult process, which involves the electrolysis of alumina (Al2O3) dissolved in a molten electrolyte (T).
Therefore, the correct setup is Iron (L), copper (T), aluminium (T).