精品解析:2022年四川省泸州市中考化学真题(解析版)
化学1.没有空气就没有生命。下列有关空气的说法错误的是A.植物光合作用需要氮气B.人体呼吸作用需要氧气C.二氧化碳属于温室气体D.稀有气体化学性质稳定【答案】A【解析】【详解】A、植物光合作用时吸收二氧化碳和水,释放出氧气,该过程没有氮气参与,故A错误;B、氧气能够支持呼吸,所以人体呼吸作用需要氧气,故B正确;C、二氧化碳增多能够加剧温室效应,所以二氧化碳属于温室气体,故C正确;D、稀有气体不易和别的物质发生反应,其化学性质稳定,故D正确;故选A。2.食品包装袋中常有一个小纸袋,标有“石灰干燥剂”字样,如图所示。下列有关该干燥剂的说法正确的是A.可以食用B.能与水反应C.属于盐类D.能吸收氧气...
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