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    【题目】世界每年因锈蚀而损失的金属数量巨大，防止金属锈蚀已成为科学研究中的重大问题．下列有关金属锈蚀与保护的措施中不正确的是（ ）

    A．铁锈蚀的实质是铁与空气中的氧气、水蒸气等发生了化学变化

    B．同样的铁制品在海南比兰州更易锈蚀

    C．在铁表面刷油漆可以防止铁锈蚀

    D．铝的抗腐蚀性能比铁强，生活中可用钢丝球洗刷铝锅

    【答案】D

    【解析】铁在空气中锈蚀，实际上是铁跟氧气、水等物质相互作用，发生一系列复杂的化学反应，使铁转化为铁的化合物的过程，A正确；海南的空气潮湿，兰州的空气干燥，因此B正确；在铁表面刷油漆，既隔绝空气又防水，可防止铁锈蚀，C正确；用钢丝球洗刷铝制品，会把铝表面的致密氧化膜除掉，从而失去保护作用，D不正确．

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