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酸与碱-紫甘蓝菜的测试
Game Code: 660615
Chinese
10
Public
使用天然材料测试物质的酸碱性
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Moon Kuek
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#Science
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紫甘蓝菜是一种天然的材料。它可以用来测试物质的酸碱性。(对/错)
对
10
当紫甘蓝菜汁被倒入柠檬汁时,会变成什么颜色?
红色
10
当紫甘蓝菜汁被倒入碱性的物质中,会变成什么颜色?
青色/黄色/绿色
10
当紫甘蓝菜汁被倒入蒸馏水中时,会变成什么颜色?
保持一样/还是紫色
10
当加入紫甘蓝菜汁时,烧杯P中的液体变成深绿色了。以下哪种物质是烧杯P中的物质?(A. 食油 B. 小苏打水 C. 白醋)
B
10
除了石蕊试纸,还有什么材料可以用来测试物质的酸碱性?
紫甘蓝菜汁
10
哪项物质会使紫甘蓝菜汁变红?(A.汽水 B. 眼药水 C. 胃药 D. 漂白剂)
A
10
为什么紫甘蓝菜可以被使用来测试物质的酸碱性?
因为紫甘蓝菜中含有花青素。
20
哪项物质会使紫甘蓝菜汁保持紫色?(A. 酸柑汁 B. 食油 C. 可口可乐 D. 肥皂)
B
10
只有紫甘蓝菜汁可以测试物质的酸碱性。(对/错)
错
10
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