
Železo
Authored by Nikola Varholiková
Biology
12th Grade

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10 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Čo nepatrí medzi triádu železa?
Fe
Co
Cu
Ni
2.
FILL IN THE BLANK QUESTION
45 sec • 1 pt
AKý je vzorec magnetitu?
3.
FILL IN THE BLANK QUESTION
45 sec • 1 pt
Ako sa volá ,,stroj", v ktorom sa spracúva železo?
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Čo nie je vstupný materiál pri výrobe železa?
koks
troska
železo
oceľ
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Koľko % uhlíka obsahuje oceľ?
do 1,7%
3-4%
do 0,7%
nad 1,7%
6.
FILL IN THE BLANK QUESTION
45 sec • 1 pt
Ktorý prvok z triády železa je súčasťou vitamínu B12? (značka prvku)
7.
OPEN ENDED QUESTION
1 min • 1 pt
Prečo sa surové železo ďalej spracováva?
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