
Vas és vasgyártás
Quiz
•
Biology
•
12th Grade
•
Practice Problem
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Medium
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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mi a Fe2+ ion hidratált színe?
Halványsárga
Halványzöld
Kék
Piros
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mi a Fe3+ ion hidratált színe?
Halványsárga
Halványzöld
Kék
Piros
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mi történik a vas híg savakkal való reakciója során?
A vas nem reagál.
A vas passziválódik.
A vas hidrogént fejleszt.
A vas vízzé alakul.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Melyik elem található meg a kokszban?
Hidrogén
Szén
Oxigén
Nitrogén
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mi a vas(III)-oxid és szén-monoxid közötti reakció egyenlete?
Fe₂O₃ + 3 CO → 2 Fe + 3 CO₂
Fe₂O₃ + 3 CO → 2 Fe + CO
Fe₂O₃ + 3 CO → Fe + 3 CO₂
Fe₂O₃ + 3 CO → 2 Fe + 3 C
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Melyik vegyület keletkezik a vas és ké n reakciója során?
FeS
Fe2S3
FeS3
FeS2
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Milyen széntartalom jellemző az acélra?
3,5–4%
2,7%
<0,5%
1,7%
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