
Elektrochemia lo kopernik
Authored by Elżbieta Zarzycka
Chemistry
Professional Development
Used 52+ times

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20 questions
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1.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Stopień utlenienia tlenu w O3 wynosi:
a.II
b. 0
c. -I
d. -II
d. zarówno 0 jak i II
2.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Utlenianie to:
a. utrata elektronów.
b. przyjmowanie elektronów.
c. utrata i przyjmowanie elektronów.
d. podwyższanie stopnia utlenienia.
e. odpowiedzi a i d są prawidłowe.
3.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Redukcja to:
a. obniżenie stopnia utlenienia.
b. podwyższenie stopnia utlenienia.
c. przyjmowanie elektronów.
d. oddawanie elektronów.
e. odpowiedzi a i c są prawidłowe.
4.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Stopień utlenienia chromu w K2Cr2O7 równa się:
V
IV
III
VI
trudno powiedzieć
5.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Stopień utlenienia manganu w anionie MnO42-
VII
VI
IV
V
nie można ustalić.
6.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Stopień utlenienia manganu w anionie MnO4- wynosi:
VII
VIII
IV
VI
tego nie można policzyć.
7.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Stopień utlenienia azotu w kationie amonowym wynosi:
III
IV
-III
-IV
II
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