Oxido - Reducción

Quiz
•
Chemistry
•
12th Grade
•
Hard
Laura Huilcapi
Used 475+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Oxidación es cuando un átomo
pierde electrones
gana electrones
pierde protones
gana protones
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
En la reacción H2 + I2 → 2HI,
el número de oxidación del I2 es
-1
0
+1
+2
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
De la reacción
Al + H2SO4 → Al2(SO4)3 + H2
Su igualación correcta es
2 + 1 → 1 + 1
2 + 1 → 1 + 3
2 + 3 → 1 + 3
2 + 3 → 1 + 1
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
El Proceso químico en los que tiene lugar alguna variación en el número de oxidación de los elementos químicos, se llama
Reacción iónica
Reacción de reducción
Reacción oxido-reducción
Reacción de oxidación
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
De la reacción:
KOH + Cl20 → KCl-1 + KCl+5O3 + H2O
Del Cl20 a Cl+5 se produce:
oxidación de + 5ē
oxidación de - 5ē
reducción de + 5ē
reducción de - 5ē
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Las semireacciones se forman de los elementos que cambian el número de oxidación. De la reacción:
KOH + Cl20 → KCl-1 + KCl+5O3 + H2O
Determine las semireacciones que se forman
Cl20 - 5ē → Cl+5
Cl20 + 1ē → Cl-1
Cl20 - 5ē → Cl+5
Cl - 1ē → Cl-1
Cl20 + 5ē → Cl+5
Cl20 + 1ē → Cl-1
Cl20 + 5ē → Cl+5
Cl20 - 1ē → Cl-1
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
El subíndice se multiplica por todos, menos el elemento que lo posee.
De las semireacciones
Mn2+2 - 2ē → Mn+4
O2-1 +1ē → O2-2
Al multiplicar los subíndices nos queda:
Mn2+2 - 2ē → Mn+4
O2-1 +1ē → O2-2
Mn2+2 - 2ē → 2Mn+4
O2-1 +2ē → 2O2-2
Mn2+2 - 4ē → 2Mn+4
O2-1 +2ē → O2-2
Mn2+2 - 4ē → 2Mn+4
O2-1 +2ē → 2O2-2
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