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Question 1 · Single choice · 中档
(2010四川高考)节能减排对发展经济、保护环境有重要意义。下列措施不能减少二氧 化碳排放的是
A. 利用太阳能制氢 B. 关停小火电企业 C. 举行“地球一小时”熄灯活动 D. 推广使用煤液化技术
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Question 2 · Single choice · 中档
(2010四川高考)NA表示阿伏伽德罗常数的值,下列说法正确的是
A. 标准状况下,22.4L二氯甲烷的分子数约为NA个 B. 盛有SO2的密闭容器中含有NA个氧原子,则SO2的物质的量为0.5mol C. 17.6g丙烷中所含的极性共价键为4NA个 D. 电解精炼铜时,若阴极得到电子数为2NA个,则阳极质量减少 64g
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Question 3 · Single choice · 中档
A. 原子最外层电子数为2的元素一定处于周期表第ⅡA族 B. 主族元素X、Y能形成XY2型化合物,则X与Y的原子序数之差可能为2或5 C. 氯化氢的沸点比氟化氢的沸点高 D. 同主族元素形成的氧化物的晶体类型均相同
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Question 4 · Single choice · 中档
A. 向明矾溶液中加入过量的氢氧化钡溶液:
Al3+ + 2SO4
2-+2Ba2+ + 4OH-= 2BaSO4↓+ AlO2
-+ 2H2O B. 向氢氧化亚铁中加入足量的稀硝酸:$Fe(OH)2 + 2H+ = Fe2+ + 2H2O$ C. 向磷酸二氢铵溶液中加入足量的氢氧化钠溶液:NH4
+ + OH-= NH3∙H2O D. 向CH 2BrCOOH中加入足量的
氢氧化钠溶液并加热:
CH2BrCOOH + OH-CH2BrCOO-+ H2O
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Question 5 · Single choice · 中档
(2010四川高考)有关①100mL0.1mol/LNaHCO3、②100mL0.1mol/LNa2CO3两种溶液的叙 述不正确的是
A. 溶液中水电离出的H+个数:②>① B. 溶液中阴离子的物质的量浓度之和:②>① C. ①溶液中:c(CO3
2-)>c(H2CO3) D. ②溶液中:c(HCO3
-)>c(H2CO3)
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Question 6 · Single choice · 中档
(2010四川高考)中药狼把草的成分之一M具有消炎杀菌作用,M的结构如图所示:
下列叙述正确的是
A. M的相对分子质量是180 B. 1molM最多能与2molBr2发生反应 C. M与足量的NaOH溶液发生反应时,所得有机产物的化学式为C9H4O5Na4 D. 1molM与足量NaHCO3反应能生成2molCO2
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Question 7 · Single choice · 中档
(2010四川高考)标准状况下V L氨气溶解在1L水中(水的密度近似为1g/mL),所得溶液的密度为ρg/mL,质量分数为ω ,物质的量浓度为c mol/L,则下列关系中不正确的是
A. ρ = (17V + 22400) / (22.4 + 22.4V) B. ω = 17c / (1000ρ) C. ω = 17V / (17V + 22400) D. $c = 1000V$ρ /(17V + 22400)
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Question 8 · Single choice · 中档
(2010四川高考)反应aM(g)+bN(g) cP(g)+dQ(g)达到平衡时。M的体积分数y(M)与 反应条件的关系如图所示。其中z表示反应开始时N的物质的量与M的物质的量之比。下列说 法正确的是
A. 同温同压同Z时,加入催化剂,平衡时Q的体积分数增加 B. 同压同Z时,升高温度,平衡时Q的体积分数增加 C. 同温同Z时,增加压强,平衡时Q的体积分数增加 D. 同温同压时,增加Z,平衡时Q的体积分数增加。
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