PENYETARAAN REAKSI REDOKS
Quiz
•
Chemistry
•
12th Grade
•
Medium
Christina Nopriani
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5 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Reaksi reduksi dapat ditunjukkan oleh terjadinya....
penambahan proton
pelepasan elektron
penambahan muatan atom
penangkapan oksigen
pengurangan bilangan oksidasi
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Bilangan oksidasi nitrogen dalam HNO3 adalah....
–5
-3
0
+3
+5
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Reaksi oksidasi yang benar adalah . . . .
Mg(s) + 2 e– --> Mg2+(aq)
Na(s) --> Na2+(aq) + 2 e–
Cu(s) + 2 e– --> Cu2+(aq)
Al(s) --> Al3+(aq) + 3 e–
Ca(s) --> Ca3+(aq) + 3 e–
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Di antara reaksi berikut, manakah yang bukan reaksi redoks?
NaOH + HCl --> NaCl + H2O
CuO + H2 --> Cu + H2O
Mg + HCl --> MgCl2 + H2
Na + H2O --> NaOH + H2
Fe2O3 + CO --> Fe + CO2
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jika reaksi:
Cu2+(aq) + NO(g) → Cu(s) + NO3–(aq) (belum setara) dilengkapi maka persamaan reaksi itu akan mengandung ....
10 H+ dan 5 H2O
8 OH– dan 4 H2O
8 H+ dan 4 H2O
4 OH– dan 2 H2O
4 H+ dan 2 H2O
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