IBDP化學(xué)課程真題講解（5）

通常而言，IBDP 化學(xué)被視作一門比較難的學(xué)科。但對于一些小伙伴而言，IB化學(xué)卻并不那么難。這兩者并不矛盾。今天帶著大家一起看一道IBDP化學(xué)課程的真題：選擇題（HIGHER LEVEL PAPER 2）。這道題取自于IBDP chemistry specimen paper。不多說，直接上題。

題目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.

題目難度：簡單。

考點(diǎn)分析：考查radius

題目分析：nitrogen得電子變成ions，電子數(shù)的增加導(dǎo)致排斥力增加，導(dǎo)致ions的半徑大于atoms的半徑。

正確答案：

題目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.

題目難度：簡單。

考點(diǎn)分析：考查reaction of nitrogen dioxide with water

題目分析：二氧化氮和水反應(yīng)生成硝酸和亞硝酸。

正確答案：

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