OBJEKTIF SPM 2020
Authored by MARIANA Moe
Chemistry
10th Grade
Used 18+ times
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25 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Seorang ahli teknologi makanan ingin memusnahkan bakteria yang merosakkan pisang
dengan menggunakan radioisotop.
Antara berikut, yang manakah sesuai digunakan?
Kobalt-60
Karbon-14
Sodium-24
Fosforus-32
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Jisim molekul relatif untuk sebatian dengan formula empirik CH2 ialah 42.
Cari formula molekul sebatian ini?
[Jisim atom relatif : C = 12; H = 1]
CH2
C2H4
C3H6
C4H8
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Rajah 1 menunjukkan sebiji kapal udara berisi gas P. Gas P terdiri daripada
Sebatian
Molekul
Atom
Ion
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Pernyataan manakah yang menerangkan mengapa duralumin adalah lebih keras
daripada aluminium?
Ruang kosong antara atom-atom dalam duralumin berkurang.
Atom-atom dalam duralumin tersusun teratur
Daya tarikan di antara atom-atom dalam duralumin adalah lebih kuat.
Lapisan atom-atom dalam duralumin lebih sukar menggelongsor antara satu sama
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Antara berikut, gas yang manakah mempunyai ikatan kovalen ganda dua?
Hidrogen
Nitrogen
Klorin
Oksigen
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Rajah 3 menunjukkan radas yang disediakan untuk mengkaji tindak balas antara air
klorin dan larutan kalium bromida. Antara berikut, bahan manakah yang boleh menggantikan air klorin untuk mendapat
pemerhatian yang sama?
Larutan kalium kromat(VI) berasid
Larutan kalium iodida
Larutan ferum(II) sulfat
Serbuk zink
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
2Al(p) + 3Cu2+(ak) → 2Al3+(ak) + 3Cu(p)
Antara berikut, penyataan manakah adalah tepat mengenai persamaan di atas?
Aluminium adalah agen penurunan.
Ion kuprum menderma elektron.
Ion kuprum dioksidakan.
Aluminium diturunkan.
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