5-2.2

5-2.2

8th Grade

8 Qs

quiz-placeholder

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5-2.2

5-2.2

Assessment

Quiz

Chemistry

8th Grade

Practice Problem

Hard

Created by

Yesing Tsai

Used 6+ times

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8 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

1.(甲)天然氣;(乙)石油;(丙)酒精;(丁)醋酸,試以代號回答下列問題:哪些易溶於水? 

(A)甲乙

(B)丙丁

(C)甲丙

(D)甲乙丙丁

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

2.(甲)天然氣;(乙)石油;(丙)酒精;(丁)醋酸,試以代號回答下列問題:可當做燃料的是哪些?    

(A)甲乙

(B)丙丁

(C)甲丁

(D)甲乙丙

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

3.(甲)天然氣;(乙)石油;(丙)酒精;(丁)醋酸,試以代號回答下列問題:成分中含有碳與氫兩種元素的有哪些?    

(A)甲乙

(B)丙丁

(C)乙丙丁

(D)甲乙丙丁。

4.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

4.天然氣的最主要成分

(1) CH4

(2) C3H8

(3) C2H6

(4) C5H12

5.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

5.液化石油氣的最主要成分?

(1) CH4

(2) C3H8

(3) C2H6

(4) C5H12

6.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

6.取乙醇水溶液作實驗,試回答下列問題:測其酸鹼性,此水溶液應呈何種反應?  

(A)酸性

(B)鹼性

(C)中性

7.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

7.又將乙醇溶液置於空氣中一週,發現溶液變質後再測其酸鹼性,則水溶液呈何種反應?  

(A)酸性

(B)鹼性

(C)中性

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