英皇_2006_mock_chem_II_alan

英皇_2006_mock_chem_...

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Prepared by Alan Cheng Chemistry Paper 2 Alan Cheng Alan Cheng z 經驗理科名師 畢業於香港科技大學化學系 ,獲 榮譽理學士,香港大學 頒授教師專業資格。 z 人氣急升 近年學生人數不斷上升,教學方法大 獲好評,贏盡口碑 ,更被譽為新一代化學科補 習名師 z 擁有多年教學經驗,並連續五年擔任英皇教育 日校化學科科主任 一職。 z 曾於明報教育網 中解答會考生的問題。 z 曾任多間名校學生補習教師 ,對於爭取好成 績,有一套獨特心得。 z 2005 年中學會考化學科 Tip 中大量題目 ,並 包括 Q12. essay ( 傳意題 ) z 2005 年會考十優狀元 Timophy Un 由中三至中 五一直報讀 Alan Cheng ,絕對是尖子的最佳選 擇。
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There are 30 questions in Section A and 20 questions in Section B. Atomic numbers and relative atomic masses of elements can be obtained from the Periodic Table printed on page 1. Section A 1. A compound formed from element X and element Y has the following electronic structure: (Only electrons in the outermost shells are shown.) Which Group does element Y most probably comes from? A. Group II B. Group IV C. Group VI D. Group VII 2. The label below is displayed on a container for chemical Y: Which of the following chemicals may Y be? A. Ethanoic acid B. Concentrated sulphuric acid C. 1,1,1-trichloroethane D. Sodium chloride 3. The chemical properties of an element depend on A. Size of the atom. B. Mass of the atom. C. The number of electron shells of the atom. D. The number of outermost shell electrons of the atom. 2
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4. Which of the following substances can be obtained from cracking of heavy oil? (1) C 3 H 8 (2) C 5 H 10 (3) CO 2 A. (1) and (2) only B. (1) and (3) only C. (2) and (3) only D. (1), (2) and (3) 5. Which of the following pairs of solution, when mixed, would produce a white precipitate? A. Calcium chloride and sodium nitrate B. Silver nitrate and nitric acid C. Iron(II) sulphate and potassium hydroxide D. Magnesium nitrate and ammonia 6. Which of the following statements concerning sulphur dioxide are correct? (1) It can decolorize acidified potassium dichromate solution. (2) It can be collected by downward delivery. (3) It can be prepared by the reaction between sodium sulphite solution and dilute hydrochloric acid. A. (1) and (2) only B. (1) and (3) only C. (2) and (3) only D. (1), (2) and (3) 7. An atom must contain (1) proton. (2) electron. (3) neutron. A. (1) and (2) only B. (1) and (3) only C. (2) and (3) only D. (1), (2) and (3) 3
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8. Which of the following statements concerning and are correct? B 10 5 B 11 5 (1) They are isotopes of the same element. (2) They have the same chemical properties. (3) They have different number of neutron. A. (1) and (2) only B. (1) and (3) only C. (2) and (3) only D. (1), (2) and (3) 9. Element X and Y are in the same period of the periodic table. Which of the following statements concerning X and Y is / are correct?
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英皇_2006_mock_chem_...

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