IBDP化学课程真题讲解（5）

通常而言，IBDP 化学被视作一门比较难的学科。但对于一些小伙伴而言，IB化学却并不那么难。这两者并不矛盾。今天带着大家一起看一道IBDP化学课程的真题：选择题（HIGHER LEVEL PAPER 2）。这道题取自于IBDP chemistry specimen paper。不多说，直接上题。

题目1： One of the main constituents of acid deposition is sulfuric acid. This acid is formed from the sulfur dioxide pollutant.A mechanism proposed for its formation is:

(e) With reference to section 9 of the data booklet, explain the difference between the atomic radius and the ionic radius of nitrogen.

题目难度：简单。

考点分析：考查radius

题目分析：nitrogen得电子变成ions，电子数的增加导致排斥力增加，导致ions的半径大于atoms的半径。

正确答案：

题目2：One of the main constituents of acid deposition is sulfuric acid. This acid is formed from the sulfur dioxide pollutant.A mechanism proposed for its formation is:

(d) Other compounds present in acid rain are formed from nitrogen dioxide. Formulate an equation for the reaction of nitrogen dioxide with water.

题目难度：简单。

考点分析：考查reaction of nitrogen dioxide with water

题目分析：二氧化氮和水反应生成硝酸和亚硝酸。

正确答案：

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