肥皂與清潔劑
Quiz
•
Science
•
7th - 9th Grade
•
Practice Problem
•
Medium
鄭之偉 鄭之偉
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列各種家庭廢棄的物質中,何者可用來作為製造肥皂的主要原料?
食醋
廢紙
回鍋油
吃剩的米飯
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
「起雲劑」是一種食品添加物,也是一種界面活性劑,能使原本有明顯界面、不互溶的水狀與油狀液體混合均勻而不分層。下列哪一種物質加入附圖的油水分層試管中,最能達到上述的效果?
蒸餾水
肥皂水
飽和食鹽水
葡萄糖水溶液
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
製造肥皂時,為了要讓脂肪溶解並使反應速率加快,通常會加入下列何種物質?
濃食鹽水
酒精
水
硫酸
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
想要自己作肥皂,下列原料中,真正參與反應的是哪兩種物質?甲.食鹽水;乙.硫酸;丙.椰子油;丁.過氧化氫;戊.酒精;己.氫氧化鈉。
乙戊
丙戊
丙己
甲丁
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
圖中草灰和熱油發生了什麼事?
酯化反應
皂化反應
酸鹼中和
氧化還原
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
皂化反應式可表示為:油脂+氫氧化鈉水溶液→肥皂+甘油。其中甘油的結構如圖所示。下列有關此反應及物質的敘述,何者正確?
甘油的水溶液呈鹼性
肥皂的水溶液呈鹼性
反應後通過濾紙過濾,可將產物分離
皂化反應是酸鹼中和反應,故反應快速
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
有關肥皂組成的敘述,下列何者正確?
是由石油提煉出來的化合物
組成元素大多為碳、氫
洗碗精也是其中的一種
是一種油脂與強酸反應生成的物質
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