Bab 4: 4.3 -Proses Pengekstrakan Logam
Quiz
•
Science
•
Professional Development
•
Practice Problem
•
Hard
Nur Auni
Used 34+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Antara berikut, yang manakah merupakan pernyataan yang benar?
Ferum lebih sukar diekstrak berbanding zink.
Ferum lebih sukar diekstrak berbanding kuprum.
Ferum tidak boleh diekstrak secara penurunan oleh karbon.
Ferum mudah diekstrak kerana ia adalah logam peralihan.
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Banyak logam yang diekstrak daripada bijihnya dengan memanaskan logam oksida dengan karbon.
Logam yang manakah tidak boleh diekstrak menggunakan kaedah ini?
Zink
Ferum
Kuprum
Aluminium
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Empat tindak balas berlaku dalam relau bagas untuk menghasilkan ferum.
Tindak balas manakah yang digunakan untuk mengekalkan keadaan relau yang panas?
C + O2 → CO2
CO2 + C → 2CO
Fe2O3 + 3C → 2Fe + 3CO
Fe2O3 + 3CO → 2Fe + 3CO2
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Ferum diekstrak daripada bijihnya dalam relau bagas.
Gas yang manakah dihasilkan sebagai hasil buangan?
Oksigen
Nitrogen
Hidrogen
Karbon dioksida
5.
MULTIPLE SELECT QUESTION
2 mins • 1 pt
Namakan bahan-bahan yang ditambahkan ke dalam P.
Bijih besi
Aluminium
Kok (karbon)
Batu kapur
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Apakah bahan buangan dalam relau bagas yang dihasilkan oleh batu kapur?
Leburan besi
Sanga
Gas buangan
Udara panas
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Timah diekstrak dengan memanaskan bijih timah atau timah oksida, ...... dan ......
timah oksida, kasiterit
ferum oksida, kasiterit
arang kok, kasiterit
arang kok, magnesium
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