【題目】下列常見的物質(zhì)中，不代表同一種物質(zhì)的是( )。

A．氯化鈉、鹽 B．氫氧化鈉、苛性鈉

C．碳酸鈉、純堿 D．碳酸氫鈉、小蘇打

【答案】A

【解析】

試題分析：氯化鈉的俗稱為食鹽，選項中的鹽是指一類物質(zhì)。二者不代表同一種物質(zhì)

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