
výroba železa
Authored by Hana Valentová
Chemistry
9th Grade
Used 11+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Železo se vyrábí
v nístějových pecích
ve vysokých pecích
v konvertorech
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
vsázku tvoří
železná ruda, oxid uhličitý, vápenec
železná ruda, vápenec, měď
želená ruda, koks, vápenec
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
princip výroby železa spočívá v
oxidaci železa z železných rud
redukci železa z železných rud
neutralizaci železa z železných rud
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
struska vzníká z
vápence a hlušiny
železa a uhlíku
uhlíku a vápence
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
hematit =
krevel
ocelek
hnědel
magnetovec
6.
FILL IN THE BLANK QUESTION
1 min • 1 pt
60 % surového železa se použije na výrobu
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
CO je prudce jedovatý plyn
ano
ne
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