Kimia Tingkatan 5 : TINDAK BALAS REDOKS
Quiz
•
Chemistry
•
11th Grade
•
Hard
SITI Moe
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20 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Mg + CuO ----------> MgO + Cu
Dalam tindak balas di atas, Magnesium ialah
agen pengoksidaaan
agen penurunan
terdiri daripada molekul
Mengalami penurunan
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Berapakah nombor pengoksidaan bagi Mangan dalam ion MnO4 - ?
+3
+7
-3
+6
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Bahan-bahan berikut, yang manakah adalah elektrolit?
I Natrium klorida
ii Naftalena
iii Asid etanoik
iv Propanol
i dan iii
i dan iv
ii dan iii
ii dan iv
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Dalam satu sel kimia, pasangan logam yang manakah yang menghasilkan nilai voltan paling tinggi?
Zink dan Stanum
Zink dan Magnesium
Zink dan Aluminium
Zink dan Kuprum
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Air laut merupakan Tenaga Boleh Baharui yang boleh menghasilkan tenaga elektrik. Logam manakah yang sesuai dijadikan sebagai anod jika air laut dijadikan sebagai elektrolit manakala logam aluminium dijadikan sebagai katod dalam satu sel kimia ringkas?
Stanum
Magnesium
Platinum
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Logam yang manakah boleh diekstrak daripada bijihnya melalui proses penurunan oleh karbon?
Argentum
Zink
Aluminium
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Apakah pemerhatian yang diperolehi apabila sekeping zink dicelupkan ke dalam larutan kuprum(II) sulfat?
Logam zink menebal
Logam zink menipis
Warna biru larutan kuprum(II) sulfat tidak berubah
Pepejal kelabu berkilat terhasil
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