化學 2009 年 DSE、CE 選擇題（第 2 頁）

11.

What is the systematic name of the following compound ?

12.

An organic compound X has the molecular formula C₃H₄F₂. Which of the following statements concerning X is correct ?

13.

A drunken driver breathes into a device containing dichromate ions. The oxidation number of chromium would change from

14.

Which of the following is NOT an industrial product made from sulphuric acid ?

15.

Which of the following statements concerning paper chromatography is correct ?

16.

Which of the following is / are renewable energy source(s) ?

(1)natural gas

(2)wind power

(3)nuclear energy

17.

This question refers to the following micro-scale experiment.

Which of the following types of reaction is / are involved in the experiment ?

(1)redox reaction

(2)neutralisation

(3)thermal decomposition

18.

Which of the following statements concerning the Periodic Table is / are correct ?

(1)Ni is an example of transition elements.

(2)The elements are arranged in increasing order of neutron number.

(3)The lower the element located in each group, the more reactive the element is.

19.

Which of the following substances can exist in the form of simple molecules ?

(1)iodine

(2)nylon

(3)dry ice

20.

Which of the following half equations are involved when iron rusts ?

(1)Fe → Fe³⁺ + 3e⁻

(2)Fe → Fe²⁺ + 2e⁻

(3)Fe²⁺ → Fe³⁺ + e⁻