Asid & Alkali
Quiz
•
Chemistry
•
7th Grade
•
Practice Problem
•
Hard
NURUL KAMALRUDIN
Used 10+ times
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15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Pernyataan manakah yang benar?
Ubat gigi adalah bahan berasid
Cuka merupakan bahan alkali kuat
Tomato mempunyai nilai pH lebih daripada 7
Air suling mempunyai nilai pH 7
2.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Apabila kertas pH dicelupkan ke dalam larutan asid hidroklorik cair perubahan berikut akan berlaku
Kertas pH bertukar menjadi warna biru
Kertas pH bertukar menjadi warna jingga
3.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Rajah menunjukkan skala pH bagi asid, alkali dan neutral. Apakah nilai pH bagi asid?
7-8
1-6
9-14
4.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Antara yang berikut, yang manakah sifat yang sama bagi asid dan alkali?
Rasa masam
Menukarkan warna kertas litmus merah ke biru
Berasa licin
Menghakis
5.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Nilai pH asid yang paling lemah adalah ...
6
10
2
1
6.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Asid dan alkali boleh menunjukkan sifatnya tanpa kehadiran air
Betul
Salah
7.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Mengapakah kita perlu menggunakan ubat gigi untuk memberus gigi?
Untuk mengelak jangkitan kuman
Agar nafas kekal segar dan tidak berbau
Untuk mengelakkan penyakit gusi berdarah
Untuk meneutralkan asid yang dihasilkan oleh bakteria yang menyebabkan kerosakan gigi
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