Sains Bab 6 (Elektrokimia)
Quiz
•
Science
•
1st - 2nd Grade
•
Practice Problem
•
Medium
arpah abu chik
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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
1. Antara yang berikut, yang manakah menunjukkan
perubahan tenaga yang berlaku semasa proses elektrolisis?
Tenaga kimia → Tenaga elektrik
Tenaga elektrik → Tenaga kimia
Tenaga keupayaan → Tenaga elektrik
Tenaga elektrik → Tenaga bunyi
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Rajah 1 menunjukkan suatu sel elektrolitik yang ringkas
Antara bahagian berikut, yang manakah anod?
A
B
C
D
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Antara bahan berikut, yang manakah boleh digunakan
sebagai elekrolit dalam proses elektrolisis?
Larutan gula
Serbuk plumbum(II) bromida
Naftalena
Larutan kuprum(II) sulfat
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Apakah kation yang hadir dalam suatu proses elektrolisis
larutan natrium sulfat?
Ion hidroksida dan ion nitrat
ion hidroksida dan ion sulfat
ion kalium dan ion hidrogen
ion natrium dan ion hidrogen
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Antara berikut, ion yang manakah paling senang untuk
dinyahcaskan mengikut siri elektrokimia?
Ion kalium
Ion kuprum(II)
Ion hidrogen
Ion argentum
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Rajah 2 menunjukkan suatu proses elektrolisis yang dijalankan
dengan menggunakan leburan plumbum(II) bromida, PbBr2
Apakah yang dapat diperhatikan?
Mentol menyala.
Mentol tidak menyala.
Gas klorin terhasil
Logam zink terhasil di katod.
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Rajah 3 menunjukkan paku yang berkarat.
Antara berikut, proses manakah yang dapat mengelakkan
dari pengaratan?
Pengekstrakan
Penyaduran
Penulenan
Pengeringan
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