【題目】世界每年因銹蝕而損失的金屬數(shù)量巨大,防止金屬銹蝕已成為科學(xué)研究中的重大問題.下列有關(guān)金屬銹蝕與保護(hù)的措施中不正確的是(

A.鐵銹蝕的實(shí)質(zhì)是鐵與空氣中的氧氣、水蒸氣等發(fā)生了化學(xué)變化

B.同樣的鐵制品在海南比蘭州更易銹蝕

C.在鐵表面刷油漆可以防止鐵銹蝕

D.鋁的抗腐蝕性能比鐵強(qiáng),生活中可用鋼絲球洗刷鋁鍋

【答案】D

【解析】鐵在空氣中銹蝕,實(shí)際上是鐵跟氧氣、水等物質(zhì)相互作用,發(fā)生一系列復(fù)雜的化學(xué)反應(yīng),使鐵轉(zhuǎn)化為鐵的化合物的過程,A正確;海南的空氣潮濕,蘭州的空氣干燥,因此B正確;在鐵表面刷油漆,既隔絕空氣又防水,可防止鐵銹蝕,C正確;用鋼絲球洗刷鋁制品,會(huì)把鋁表面的致密氧化膜除掉,從而失去保護(hù)作用,D不正確.

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