2006年四川省成都市中考化学试题
一、选择题1下列化常用语中,正确的是A2个氮分子2NB氢氧化铁的化学式FeOH3CHO中氧元素的化合价为2价22D加热高锰酸钾和二氧化锰混合物制氧气的化学方程式2KClO2KCl3O322下列物质中不属于有机物的是A甲烷B碳酸C糖类D乙醇3下列变化中属于物理变化的是A将石油加热炼制,以得到多种石油化工产品B不小心将食醋洒落在大理石地面上,大理石地面被腐蚀C用铝制容器盛放酸性食物,铝制容器被腐蚀D把秸杆、杂草、人畜粪便放在密闭的沼气池中发酵制沼气4某生在化学晚会上表演如下魔术用毛笔蘸取一种无色液体在一张白纸上书写了“化学魔术”四字,然后再喷上一种无色液体,白纸上立即出现了红色的“化学魔术”四字。该生先后所用的无色液体可能是A紫色石蕊溶液、稀硫酸B酚酞溶液、“雪碧”饮料CNaOH溶液、酚酞溶液DCuSO溶液、NaOH溶液4
f5各种洗涤剂广泛进入人们的生活中,下列洗涤中所用洗涤剂不具有乳化功能的是
A用汽油除去衣服上的油污B用餐具洗洁精清洗餐具上的油污C用肥皂液洗衣D用沐浴露洗澡
6某粒子结构示意图为,下列对该粒子的说法中不正确的是A核内有10个质子
B核外电子是分层排布的C具有较稳定结构D可能是阳离子或阴离子或稀有气体原子a
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