1. Mengapakah karbon-12 ialah rujukan piawai bagi JAR ? / Why is carbon-12 chosen as standard reference to RAM?
A
A. Karbon ada tiga isotop / Carbon has three isotopes
B
B. Karbon adalah bukan logam / Carbon is a non-metal element
C
C. Karbon adalah pepejal dan mudah dikenali / Carbon is a solid and easier to handle
D
D. Karbon terletak di kumpulan 14 / Carbon is in group 14
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2. Apakah maksud pemalar Avogadro? / What is the meaning of Avogadro constant?
A
A. Jisim bagi satu mol bahan / Mass of one mole of substance
B
B. Tekanan bagi satu mol bahan / Pressure of one mole of substance
C
C. Isipadu yang dipenuhi oleh satu mol bahan / Volume occupied by one mole of substance
D
D. Bilangan zarah di dalam satu mol bahan / Number of particles in one mol of substance
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3. 0.14mol gas X2, mempunyai jisim 1.4g, Berapakah jisim atom relatif bagi X? / 0.14mol of an unknown gas X2, has a mass of 1.4g. What is the relative atomic mass of X?
A
A. 2.5
B
B. 5.0
C
C. 10.0
D
D. 15.0
4/15
4. Hitungkan jisim 0.5 mol kalium sulfat / Calculate the mass of 0.5 moles of potassium sulphate [JAR/RAM:O=16,S=32,K=39]
A
A. 87g
B
B. 77g
C
C. 67.5g
D
D. 57.5g
5/15
5. Pembakaran butena (C4H8) dalam oksigen berlebihan / The combustion of butene (C4H8) in excess oxygen
A
A. C4H8 + O2 --> CO2 + H20
B
B. C4H8 + O2 --> 4CO2 + 8H2O
C
C. C4H8 + 9O2 -->4CO2 + 4H2O
D
D. C4H8 + 6O2 --> 4CO2 + 4H2O
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6. Formula garam sulfat X ialah XSO4. Apakah formula garam nitrat X? / The formula of the sulphate salt of X is XSO4. What is the formula of the nitrate salt of X?
A
A. XNO3
B
B. X2NO3
C
C. X(NO3)2
D
D. X2(NO3)2
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7. Air kapur menjadi keruh dan satu pepejal hitam terbentuk. / Limewater turns milky and a black solid formed
A
A. Cu2CO3 --> Cu2O + CO2
B
B. CuCO3 --> CuO + CO2
C
C. CuCO3 --> CuO2 + CO
D
D. CuCO2 --> Cu + CO2
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8. Manakah formula empirik sebatian X? / Which is the chemical formula of compound X?
A
A. CH
B
B. CH2
C
C. C2H2
D
D. C6H6
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9. Pilih formula kimia yang betul / Choose the correct chemical formula
A
A. Cu2Cl
B
B. Mg2SO4
C
C. Fe2O3
D
D. Na(OH)
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10. Yang manakah sebatian molekul? / Which of the following substances is a molecule?
A
A. Argon / Argon
B
B. Natrium klorida / Sodium chloride
C
C. Nitogen dioksida / Nitrogen dioxide
D
D. Pita magnesium / Magnesium ribbon
11/15
11. Gas hidrogen digunakan untuk menurunan oksida logam T. Apakah logam T? / Hydrogen gas is used to reduce the oxide of T. What is metal X?
A
A. Kuprum / Copper
B
B. Kalsium / Calcium
C
C. Magnesium / Magnesium
D
D. Aluminium / Aluminium
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12. Jisim molekul relatif bagi C8H12N2O3 / Relative molecular mass of C8H12N2O3 [JAR/RAM: H=1,C=12,N=14,O=16]
A
186
B
184
C
180
D
182
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13. Yang manakah mengandungi 6.02 X 10^23 atom ? / Which contains 6.02 X 10^23 atom?
A
A. 1 mol natrium klorida / 1 mole sodium chloride
B
B. 1 mol gas karbon dioksida / 1 mole carbon dioxide gas
C
C. 1 mol ferum / 1 mole iron
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14. Pilih persamaan yang seimbang / Choose the correct balanced equation.
A
A. P4 + 6Cl2 --> 4PCl3
B
B. P4 + Cl2 --> PCl3
C
C. P4 + 2Cl2 --> PCl3
D
D. P4 + Cl2 --> 2PCl3
15/15
15. Apakah formula empirik bagi vitamin C, C6H8O6 / What is the empirical formula of vitamin C, C6H8O6?