试题与答案

下列变化属于吸热反应的是 ①碳与二氧化碳化合 ②生石灰与水反应生成熟石灰 ③Zn

题型:选择题

题目:

下列变化属于吸热反应的是

①碳与二氧化碳化合

②生石灰与水反应生成熟石灰

③Zn与稀硫酸反应

④氯酸钾分解制氧气

⑤Ba(OH)2.8H2O与NH4Cl反应

⑥甲烷与氧气的燃烧

A.①④

B.②③

C.①④⑤

D.①②④

答案:

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