
elektrokimia
Quiz
•
Chemistry
•
University
•
Practice Problem
•
Hard
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6 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Berdasarkan data tersebut, logam yang paling mudah teroksidasi adalah ….
Ni
Hg
Pb
Co3+
Co2+
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Berdasarkan data potensial reduksi standar tersebut, logam yang paling mudah teroksidasi adalah...
Ni-Cd-Al-Fe
Cd-Al-Ni-Fe
Fe-Al-Ni-Cd
Al-Fe-Cd-Ni
Cd-Ni-Al-Fe
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Padasel volta terdapat 2 buah elektroda, pernyataan yang benar mengenai elektroda adalah ….
elektroda negatif disebut juga katoda, tempat terjadinya reaksi oksidasi
elektroda negatif disebut juga anoda, tempat terjadinya reaksi oksidasi
elektroda positif disebut juga katoda, tempat terjadinya reaksi oksidasi
elektroda positif disebut juga anoda, tempat terjadinya reaksi reduksi
elektroda negatif disebut juga katoda, tempat terjadinya reaksi reduksi
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jika lelehan NaCl dielektrolisis dengan elektroda Pt maka akan terbentuk ....
natrium di katoda, oksigen di anoda
hidrogen di katoda, oksigen di anoda
natrium di katoda, klorin di anoda
hidrogen di katoda, klorin di anoda
natrium di katoda, oksigen di anoda
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Spesi yang dihasilkan di katoda dan anoda berturut-turut pada reaksi elektrolisis larutan MgCl2 dengan elektroda seng adalah ….
gas O2 dan gas H2
gas H2 dan Zn2+
gas H2 dan gas O2
logam Mg dan Zn2+
logam Mg dan karbon
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Logamnatrium diperoleh dari elektrolisis lelehan NaCl, kuat arus yang dibutuhkan untuk menghasilkan 10 kg logam natrium setiap jam adalah ….
1,16 x 103 A
2,32 x 104 A
1,16 x 104 A
2,32 x 103 A
1,75 x 104 A
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