1/5单选题
难度：
1.已知lmol某气态烃CmHn完全燃烧时，需耗用O2 5mol，则m与n的下列关系正确的是
| A | m=8-n |
| B | m=10-n |
| C | m＝11－n |
| D | m＝12－n |
- 提示1：
- 5pyJ5py654mp54eD54On55qE5pa556iL5byP5Li677yaPGltZyB3aWR0aD0yNzYgaGVpZ2h0PTQyIHNyYz0iaHR0cHM6Ly9wMS5xaW5nZ3VvLmNvbS9HMS9NMDAvNjEvOTcvckJBQ0psVVpENlNDaUdmV0FBQUdKMTNDbmRrMDg2LnBuZyI+IA==
正确答案：Qw==
bStuLzQ9Ne+8jOWQjOaXtueUseS6jueDg+S4uuawlOaAge+8jG3iiaQ077yM5YiG5Yir5Luj5YWl5pWw5YC85Y+v5b6X56ym5ZCI6aKY5oSP55qE54OD55qE5YiG5a2Q5byP5Li677yaQzxzdWI+Mzwvc3ViPkg8c3ViPjg8L3N1Yj7vvIzmlYXpgInpobnlkIxD56ym5ZCI6aKY5oSP
2/5单选题
难度：
2.某烷烃分子含n个碳原子, 充分燃烧2 mol该烷烃生成二氧化碳和水，消耗氧气的物质的量为
| A | （3n+1）/2mol |
| B | n mol |
| C | (3n+2) mol |
| D | (3n+1)mol |
- 提示1：
- 54O354OD55qE57uT5p6E6YCa5byP5Li6QzxzdWI+bjwvc3ViPkg8c3ViPjJuKzI8L3N1Yj7vvIzmja7mraTlj6/ku6XorqHnrpflh7rliIblrZDkuK3msKLljp/lrZDnmoTkuKrmlbDjgII=
正确答案：RA==
54O354OD5YiG5a2Q5ZCrbuS4queis+WOn+WtkO+8jOWImeS4gOWumuWQq+aciTJu77yLMuS4quawouWOn+WtkO+8jOaJgOS7peWujOWFqOeHg+eDpzJtb2zor6XmnInmnLrnianmtojogJfmsKfmsJTnmoTnianotKjnmoTph4/mmK8ybm1vbO+8i25tb2zvvIsxbW9s77ydKDNuKzEpbW9s77yM562U5qGI6YCJROOAgg==
3/5单选题
难度：
3.下列性质中属于烷烃特征性质的是
| A | 燃烧产物只有二氧化碳和水 |
| B | 分子通式为CnH2n+2，与氯气发生取代反应 |
| C | 它们是非电解质 |
| D | 它们几乎不溶于水 |
- 提示1：
- 5rOo5oSP6aKY5bmy55qE6KaB5rGC77yM6ZyA6KaB5oiR5Lus6YCJ5Ye66IO95aSf5Luj6KGo54O354OD55qE54m55b6B5oCn6LSo77yM5Lmf5bCx5piv5YW25LuW56eN57G755qE54mp6LSo5LiN5YW35pyJ55qE5oCn6LSo44CC
正确答案：Qg==
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
4/5单选题
难度：
4.0.2mol某烷烃完全燃烧后，将生成的气体缓慢通入0.5L2mol·L－1NaOH溶液中，生成的Na2CO3和NaHCO3的物质的量之比为1:3，则该烷烃为
| A | 甲烷 |
| B | 乙烷 |
| C | 丙烷 |
| D | 丁烷 |
- 提示1：
- 5pys6aKY6ZyA6KaB55Sx54O354OD54eD54On5ZCO5Lqn55Sf55qE5LqM5rCn5YyW56Kz5LiOTmFPSOeahOWPjeW6lOi/m+ihjOWumumHj+iuoeeul++8jOaxguWHuueis+eahOeJqei0qOeahOmHj++8jOS7juiAjOehruWumueDt+eDg+eahOWIhuWtkOW8j+OAgg==
正确答案：RA==
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
5/5单选题
难度：
5.天然气、液化石油气燃烧的化学方程式分别为：CH4+2O2
CO2+2H2O、C3H8+5O23CO2+4H2O现有一套以天然气为燃料的灶具，改燃液化石油气，应采用的正确措施是
CO2+2H2O、C3H8+5O23CO2+4H2O现有一套以天然气为燃料的灶具，改燃液化石油气，应采用的正确措施是 | A | 石油气、空气两种气体进入量都减少 |
| B | 增大空气进入量或减少液化气进入量 |
| C | 增大空气进入量或减少液化气进入量 |
| D | 减少空气进入量或增大液化气进入量 |
- 提示1：
- 5pys6aKY6ZyA6KaB5YiG5p6Q562J5L2T56ev55qE55Sy54O35ZKM5LiZ54O354eD54On5pe25omA6ZyA6KaB55qE5rCn5rCU5aSa5bCR44CC
正确答案：Qg==
5qC55o2u55Sy54O35ZKM5LiZ54O354eD54On55qE5pa556iL5byP5Y+v55+l77yM5Zyo5L2T56ev55u4562J55qE5p2h5Lu25LiL77yM5LiZ54O35raI6ICX55qE5rCn5rCU5aSa77yM5omA5Lul5Lul5aSp54S25rCU5Li654eD5paZ55qE54G25YW377yM5pS554eD5ray5YyW55+z5rK55rCU77yM5bqU6YeH55So55qE5q2j56Gu5o6q5pa95piv5aKe5aSn56m65rCU6L+b5YWl6YeP5oiW5YeP5bCR5ray5YyW5rCU6L+b5YWl6YeP77yM562U5qGI6YCJQuOAgg==