1ère spé C5 Réactions d’oxydo-réduction
11th Grade
•14 Qs
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1ère spé C5 Réactions d’oxydo-réduction
Quiz
•
Chemistry
•
11th Grade
•
Medium
F. Bellat
Used 19+ times
FREE Resource
14 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
La demi-équation électronique adaptée du couple Fe2+ / Fe est
Fe2+ = Fe - 2 e-
Fe2+ - 2 e- = Fe
Fe2+ = Fe + 2 e-
Fe2+ + 2 e- = Fe
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
La demi-équation électronique adaptée du couple H+ / H2 est
H+ = H2 - 2 e-
2H+ - 2 e- = H2
2H+ + 2 e-= H2
H+ + e- = H2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Donner le couple oxydant/réducteur associés à la demi-équation électronique Ag+ + e- = Ag
Ag+ / Ag
Ag / Ag+
Ag+ / e-
Ag+ + e- / Ag
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Un oxydant est une espèce chimique capable de
Céder un ou plusieurs électrons
Accepter un ou plusieurs électrons
Céder un ou plusieurs protons
Accepter un ou plusieurs protons
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Un réducteur est une espèce chimique capable de
Céder un ou plusieurs électrons
Accepter un ou plusieurs électrons
Céder un ou plusieurs neutrons
Accepter un ou plusieurs protons
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Un couple rédox s’écrit toujours
Ça dépend des espèces chimiques
Oxydant / réducteur
Réducteur / oxydant
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dans l’écriture Zn2+ / Zn, le réducteur est
Zn2+
Zn
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