问题 选择题

使用类似数轴的方法研究一些化学问题可以收到的直观形象的效果.下列表达正确的(  )

A.Fe在Cl2中的燃烧产物:

B.氨水与SO2反应后溶液中的铵盐:

C.平衡常数与转化率关系:

D.Cl2与CH4取代反应后的产物:

答案

A.Fe在Cl2中燃烧只有一种产物FeCl3,与氯气的量无关,故A错误;

B.NH3•H2O+SO2=NH4HSO3,2NH3•H2O+SO2=(NH42SO3+H2O,

n(NH3H2O)
n(SO2)
≤1,生成NH4HSO3

1<

n(NH3H2O)
n(SO2)
<2,产物为NH4HSO3与(NH42SO3混合物;
n(NH3H2O)
n(SO2)
≥2,只生成(NH42SO3,数轴关系合理,故B正确;

C.平衡常数和转化率是衡量反应进行程度的物理量,平衡常数越大反应进行程度越大;反应物的转化率越大,反应进行程度越大,平衡常数等于1时,反应物的转化率并不一定等于50%,故C错误;

D.氯气和甲烷发生取代反应是连锁反应,反应一旦发生四种取代产物都会生成,故D错误;

故选B.

阅读理解

下面是一篇应用文及其应用场合的信息,请阅读下列应用文和相关信息,

并按照要求匹配信息。

      A.City unit sale:A 2 large bedroom unit (Top floor & 60 sqm) along Lonsdale St with a good

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rent: $395 per week. Price: $265, 000. Contact: Tan ++ 3 96395362 / 0401 542 361

     B.Rooms $130 + pw:Elsternwick 2 bedroom home - Person wanted to share in spacious and

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garden and carport with a huge BBQ. Bedroom can be furnished or unfurnished; rent: $130 per week,

plus electricity. I work 6 day shifts and want someone who is able to put up with my lifestyle as my

housemate.

     C.Town & County VIC new: Fully furnished room to share in a 2 bedroom house from July at one

of the best locations of Hawthorn, close to city, transport and Swinburne Uni. Accommodation is

available at 100 / w. House is having almost every facility. Best suitable for students.

     D.Property for lease: Available: Beautiful light-filled 2 bedroom apartment with a large balcony

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with one guy (24) and a cat. Use of washing machine & dryer. $100pw + bills 0406793626

     F.Rooms wanted: An easy-going couple is looking for a room in an inner city suburb, Kensington,

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We are into a lot of things, friendly and easy-going.

请阅读以下个人信息,然后匹配人名和出租 / 求租信息。

1. Ray and his wife are very friendly. They have just moved to the city. And they are planning to

work here. They want to rent a room to live in for a period of time.

2.Phil has a unit about sixty square meters. It is near China-town and you can go shopping on foot.

You can rent it or buy it as you like.

3.Mike has a wonderful apartment to rent which faces the streets. It is fully furnished with kitchen,

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4.Robert has rent a room which has a large backyard. The room is close to the station. He has raised

a lovely cat. He wants to find someone ranging from 18 to 30 to live with him.

5.Clare is a student in a university in Hawthorn. She is going to rent a room with one of her classmates

in a place where transport is convenient.

单项选择题