问题 选择题

有机物的结构简式如右图,下列对其化学性质的判断中,不正确的是( )

A.能被银氨溶液氧化

B.能使KMnO4酸性溶液褪色

C.1mol该有机物只能与1molH2发生加成反应

D.1mol该有机物只能与含1molBr2的的溴水发生加成反应

答案

答案:C

题目分析:根据有机物的结构简式可知,分子中含有1个碳碳双键和1和醛基,则选项ABD均是正确的。C不正确,1mol该有机物能与2molH2发生加成反应,答案选C。

点评:该题的关键是准确判断出有机物分子中含有的官能团,然后依据相应官能团的结构和性质灵活运用即可,有利于培养学生的逻辑推理能力和知识的迁移能力。

阅读理解
阅读理解。
     How do you get your pocket money, and how do you spend it? Let's see how different the answers
from a Chinese boy and an Australian boy are: Li Meng, in Junior 2 at a middle school in Beijing and James
Wardley, a secondary school boy in Melbourne, Australia
                            Where do I get my money?
Li Meng James Wardley
Pocket money from parents:
20 yuan per week
Selling used newspapers from home:
20 yuan per month
Working at a local
supermarket as a cashier.
A$95 (570 yuan) per week
                              How do I spend it?
Food and drink:
15 yuan for breakfast 6 yuan
for cola or other drinks
21 yuan per week
Food and drink:
lunch during the week
and pizzas at the weekend
About  $20 per week
For fun:
3 yuan for newspapers
or cartoon books, 4 yuan for taking photos
with classmates
7 yuan per week
For fun:
going out with friends
or going to the movies
$15 (90 yuan) per week
Telephone:
50 yuan for a phone
card that can last
about one year
About l yuan per week
Telephone:
mobile phone bill
About $10 (60 yuan) per
week
Total: 29 yuan
per week
Total: $45
(270 yuan) per week
1. James Wardley usually ______ for fun.
A. buys cartoon books
B. takes pictures
C. goes to the cinemas
D. reads newspapers
2. From the reading, we know that the Australian boy can get his money ______.
A. by working himself
B. from his parents
C. by selling newspapers
D. from his friends
3. James Wardley can save about ______ per week.
A. $45
B. $50
C. $20
D. $15
4. How much money can Li Meng get per month?
A. ¥20
B. ¥40
C. ¥80
D. ¥l00
5. Li Meng usually spends ______ yuan on phone bill.
A. 15
B. 21
C. 50
D. 29
填空题