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【題目】將下列四種物質白醋、食用油、食鹽、酒精分別放入水中,能形成乳濁液的是(

A.白醋 B.食用油 C.食鹽 D.酒精

【答案】B

【解析】

試題分析:A.醋酸能溶于水形成溶液,錯誤;B.食用油不溶于水,放入水中,水只能將其分散成大小不同的小油滴,形成乳濁液,正確;C.食鹽能被水分散成鈉離子和氯離子存在于溶液中,錯誤;D.酒精能與水以任意比互溶,形成溶液,錯誤。故選B。

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