
課題4 - 酸和鹽基
Authored by Cheung Yi張洁怡
Chemistry
6th - 8th Grade
Used 3+ times

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18 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
把NH4Cl(aq) 和ZnCl2(aq) 的混合物與過量的NaOH(aq) 共熱。下列哪項觀察正確?
沒有釋出刺鼻的氣體和沒有生成沉澱物。
沒有釋出刺鼻的氣體,但生成白色沉澱物。
釋出刺鼻的氣體,但沒有生成沉澱物。
釋出刺鼻的氣體和生成白色沉澱物。
Answer explanation
銨離子在氫氧化鈉溶液中生成氨。
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列哪項有關稀氫氯酸的陳述不正確?
把氯化氫氣體溶於水可製得它。
它會與硝酸銀溶液反應,生成白色沉澱物。
它用於汽車電池中。
「腐蝕性」標籤貼在盛載稀氫氯酸的試劑瓶上。
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列哪些物質呈酸性?
(1) 玻璃清潔劑 (2) 胃液 (3) 汽水
只有(1) 和(2)
只有(1) 和(3)
只有(2) 和(3)
(1)、(2) 和(3)
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列哪項有關一般稀酸水溶液的陳述不正確?
它能把乾燥的藍色石蕊試紙變為紅色。
它能與銅反應釋出氫。
它能導電。
它能與碳酸銅(II)反應,釋出二氧化碳。
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
固體X能與稀硫酸反應,但反應中沒有水生成。X可能是甚麼?
氫氧化鋅
氧化鎂
碳酸鉀
氯化鈣
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A
B
C
D
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A
B
C
D
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