Reações de oxidação-redução
Quiz
•
Chemistry
•
11th Grade
•
Hard
Carlos Costa
Used 14+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 10 pts
Qual é o número de oxidação (n.o.) do cloro (Cℓ) no HCℓO?
Selecione a opção correta.
-1
0
+1
+5
2.
MULTIPLE CHOICE QUESTION
2 mins • 10 pts
O cloro sofre redução, atuando como
oxidante.
O zinco sofre redução, atuando como
redutor.
O zinco sofre oxidação, atuando como
redutor.
O hidrogénio sofre oxidação, atuando como
redutor.
3.
MULTIPLE CHOICE QUESTION
2 mins • 10 pts
Cu
Ag
Cu2+
Ag+
4.
MULTIPLE CHOICE QUESTION
2 mins • 10 pts
oxidante, oxidando-se.
redutor, oxidando-se.
redutor, reduzindo-se.
oxidante, reduzindo-se.
5.
MULTIPLE CHOICE QUESTION
2 mins • 10 pts
6.
MULTIPLE CHOICE QUESTION
2 mins • 10 pts
O ferro (Fe) pode apresentar vários estados de oxidação.
Nas espécies Fe, Fe2+ e Fe3+ , os números de oxidação do ferro são respectivamente:
0; +3; +2
0; -3; -2
0; +2; +3
0; -2; -3
7.
MULTIPLE CHOICE QUESTION
2 mins • 10 pts
protões do Cℓ2 para o I- .
eletrões do Cℓ2 para o I- .
eletrões do I- para o Cℓ2 .
protões do I- para o Cℓ2 .
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