SAINS T1 BAB 6 EXAM
Quiz
•
Science
•
7th Grade
•
Hard
Mohd Ahlam
Used 2+ times
FREE Resource
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30 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Unsur X berada dalam Kumpulan 1 dalam Jadual Berkala. Apakah ciri fizikal unsur ini?
Tidak berkilau
Tidak mudah ditempa
Berkilau dan lembut
Sangat keras
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mengapakah logam natrium disimpan dalam minyak parafin?
Untuk mengelakkan tindak balas dengan air
Untuk meningkatkan takat lebur
Untuk mengekalkan sifat logamnya
Untuk meningkatkan kekonduksian elektrik
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Apakah sifat logam yang membolehkan ia digunakan untuk membuat wayar elektrik?
Kekerasan
Kemuluran
Kekonduksian haba
Tidak mudah terhakis
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Unsur X terletak dalam Kumpulan 17, Kala 3 pada Jadual Berkala. Berapakah bilangan elektron valens bagi unsur ini?
3
7
5
8
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Unsur berikut adalah contoh logam alkali kecuali...
Natrium
Kalsium
Kalium
Litium
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Apakah yang akan terhasil apabila logam magnesium bertindak balas dengan asid hidroklorik?
Magnesium oksida dan air
Magnesium klorida dan hidrogen
Magnesium klorida dan oksigen
Magnesium oksida dan hidrogen
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Apakah kaedah yang sesuai untuk mengasingkan sebatian?
Penurasan
Penyulingan
Elektrolisis
Kromatografi
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