
Dobivanje željeza

Interactive Video
•
Chemistry
•
9th Grade
•
Hard
Nasta Kos
Used 8+ times
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Najzastupljeniji metal u Zemljinoj kori je:
željezo
kalcij
magnezij
aluminij
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
S kojim je elementom vezano željezo u većini minerala željeza?
dušik
kisik
sumpor
ugljik
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
U visokoj peći željezo se odvaja od kisika koristeći:
reducirajuće sredstvo
okisidirajuće sredstvo
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Visoka peć puni se odozgo. Što od navedenog NE ide u visoku peć?
koks
ruda
sumpor
vapnenac
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
U kojem dijelu peći se upuhuje vrući zrak?
gornjem
donjem
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Prvi dio procesa proizvodnje željeza NE uključuje:
stvaranje koncentrata
otapanje u odgovarajućim otapalima
prženje
7.
FILL IN THE BLANK QUESTION
45 sec • 1 pt
Koncentriranje ili obogaćivanje rude je proces uklanjanja
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