
kertas 1 kimia
Authored by IZHAN Moe
Chemistry
8th - 9th Grade
Used 33+ times

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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Antara yang berikut, yang manakah kegunaan isotop iodin-131?
Rawatan kanser
Mengesan penyakit tiroid
Sinar-X untuk pemeriksaan badan
Pentarikhan usia fosil dan artifak
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Unsur manakah yang larut dalam air untuk menghasilkan larutan yang menukarkan kertas litmus biru ke merah dan kemudian dinyahwarnakan?
i.klorin ii.Bromin iii.Iodin iv.Astatine
i dan ii
i dan iii
ii dan iii
ii dan iv
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sebatian manakah yang mempunyai formula empirik CH2O?
HCOOH
CH3COOH
CH3COOCH3
HCOOC2H5
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Antara pernyataan berikut, yang manakah benar tentang semua bes?
Larut dalam air
Mempunyai sifat alkali
Bertindak balas dengan asid
Mengandungi ion-ion hidroksida
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Rajah 3 menunjukkan susunan radas untuk menentukan formula empirik magnesium oksida.
Buka penutup mangkuk pijar sekali-sekala semasa pemanasan
Panaskan pita magnesium itu dengan kuat dalam mangkuk pijar tanpa penutupnya
Tutup mangkuk pijar dengan penutupnya sebaik sahaja pita magnesium itu mula terbakar
Ulang proses pemanasan, penyejukan dan penimbangan sehingga jisim tetap diperoleh
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Komunikasi digital memainkan peranan yang sangat penting dalam kehidupan moden. Penghantaran data, suara dan imej secara berkesan dalam format digital memerlukan satu bahan yang sesuai. Apakah bahan itu?
Kuprum
Silikon
Gentian optik
Superkonduktor
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Antara faktor berikut, yang manakah tidak mempengaruhi elektrolisis larutan akues?
Kepekatan ion-ion dalam elektrolit
Jenis elektrod yang digunakan dalam elektrolisis
Kedudukan ion-ion dalam siri elektrokimia
Isipadu elektrolit yang digunakan dalam elektrolisis
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