問題詳情
32.關於文中「電石渣水溶液」的敘述何者正確？
(A)通入二氧化碳後會出現白色的沉澱物
(B)將大理石粉末丟入會開始冒出氣泡
(C)滴入廣用試劑後溶液呈綠色
(D)能與活性大的金屬反應生成氫氣。
(A)通入二氧化碳後會出現白色的沉澱物
(B)將大理石粉末丟入會開始冒出氣泡
(C)滴入廣用試劑後溶液呈綠色
(D)能與活性大的金屬反應生成氫氣。
參考答案
答案：A
難度：適中0.4
書單：沒有書單，新增
內容推薦
- 【題組】那個誰在燒杯內改注入果汁，此時燈泡會發亮，若不斷在果汁中加水稀釋，則燈泡亮度有何變化？(A)慢慢變暗 (B)慢慢變亮 (C)先變暗再變亮 (D)先變亮再變暗。
- 阿喵為了瞭解水的組成，裝置如圖「電解水」實驗，下列敘述何者正確？ (A)甲、乙兩試管內生成的氣體質量比為 1：2(B)將留有餘燼的火柴迅速插入取出的乙試管內，此氣體可以助燃 (C)反應一段時間後
- 【題組】在本反應中，如欲生成6 × 個丙分子，則需甲氣體分子與乙氣體分子各多少個參與作用？(A)甲：6 × 個，乙：3 × 個(B)甲：6 × 個，乙：6 × 個(C)甲：2 × 個
- 【題組】What does Steve’s grandfather think green tea can do?(A) It can help him sleep at night.(B) I
- 【題組】According to Steve, what is true about the green tea?(A) It costs a lot.(B) It was a gift.(C)
- 【題組】Where are Steve and Amy probably talking?(A) In Amy’s classroom.(B) In a school library.(C) I
- 【題組】What does Amy think about the green tea?(A) It looks beautiful.(B) It smells strange.(C) It t
- 【題組】According to this passage, what does Snoopy usually do on his home?(A) He plays.(B) He reads.
- 【題組】Where would you probably find this passage?(A) In a book about daydreams.(B) In a book about
- 【題組】What is Snoopy good at?(A) Telling jokes.(B) Helping others.(C) Teaching dogs.(D) Making dogh
內容推薦
- 鹽橋在鋅銅電池中的功用為下列何者？ (A)使金屬在鹽橋析出 (B)把兩個分隔的溶液連接起來形成通路 (C)使兩溶液帶負電 (D)維持溶液的酸鹼性。
- 下圖分別為電解硫酸銅水溶液以及鋅銅電池的兩組實驗裝置示意圖，反應開始前，四支電極的質量都相同。反應經過一段時間後，取下四支電極烘乾後分別秤重，得知四支電極質量大小的關係為：碳棒甲＞電極丙＞碳棒乙
- 在電解硫酸銅水溶液時，使用不同的電極，會產生不同的反應，請問下列何者正確？ (A)以銅片為電極，負極產生銅 (B)以銅片為電極，水溶液顏色不變 (C)以碳棒為電極，水溶液顏色會變淡 (D)以上皆
- A: Why don’t you try my handmade honey pie? Are you full?B: No, I can eat more, but I _____ don’t
- The history questions in the test are very_________ . I can’t find the answer.(A) terrible (B) di
- Mom: Time is up, Josh. Brush your teeth and go to bed. Josh: ____ I will do it before I go to bed
- My English teacher taught us how to_________ English words. We need to readthem aloud and use new
- My sister fell down and ____ her arm. It still ____ now.(A) was hurt； hurt (B) hurt； hurts (C) go
- Joan doesn’t feel good. Maybe there is something wrong with the milk. She isin the _________ now.
- Don’t_________ to others. Be an honest man. (A) laugh (B) love (C) lie (D) line
- Bobby had a bad cough and a high fever. We need to take him to see todoctor _________ . (A) seldo
- Linda is a hardworking student. She didn’t leave the desk _________ shefinished the homework.(A)
- Nick _________ the floor at 3:20 yesterday afternoon.(A) is sweeping (B) was sweeping (C) sweeps
- Judy was watching some interesting videos_________ .(A) then (B) last night (C) this morning (D)
- Sam and Hank_________ talking in the science class yesterday.(A) hoped (B) wanted (C) needed (D)
- Driving lessons_________ important to every driver.(A) is (B) are (C) being (D) to be
- _________ late at night is bad for health. ____ is important to have enough sleep.(A) Work； That
- Don’t give up._________ more, and you can win the game next time.(A) Practicing (B) To practice
- Kevin had a bad stomachache. It’s terrible ____ sick. (A) being (B) be (C) to be (D)x
- For people today, using LINE on the smart phones_________ lots of fun.(A) is (B) are (C) have (D
- Linda wants to _________ Chen Shu-chu, the famous vegetable vendor. She isnot rich, but she love
- We need more practice _____ a higher score in this game. It’s the only way.(A) to get (B) to get
- Grandma was making breakfast when I_________ this morning. (A) was waking up (B) am waking up (C
- The singing contest starts at _____ in the gym. Don’t worry. We can be thereon time right after
- Karen’s parents are making a plan ____ the coming winter vacation. Theydecide ____ to Japan this