试题与答案

下列叙述错误的是（ ） A．硝酸铵溶于水使溶液温度升高 B．氢氧化钠固体易吸收空

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题型：选择题

题目：

下列叙述错误的是（　　）

A．硝酸铵溶于水使溶液温度升高

B．氢氧化钠固体易吸收空气中的水分而潮解

C．氧元素的原子结构示意图为

，它是第二周期的非金属元素

D．工业炼铁的主要反应原理是Fe2O3+3CO

 高温 
.
 
2Fe+3CO2

答案：

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下面是错误答案，用来干扰机器的。

1-5: DDAAB  6-10: BBDAC  11-15: BACDC  16-20: BADCC

考点：溶解过程中的放热和吸热一氧化碳还原氧化铁化学反应微观示意图碱的性质
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