20xx屆河南省天一大聯考高中畢業班階段性測試三化學試題及答案-資料下載頁

【導讀】考生作答時，將答案答在答題卡上（答題注意事項見。答題卡），在本試題卷上答題無效。和答題卡一并交回。每小題給出的四個選項中，只有一項是符合題目要求的。液、雙氧水等消毒劑可以完全滅活病毒感染性。KSCN溶液判斷FeBr3溶液中混有FeBr2.原理示意圖如下。下列說法正確的是。W、X的最高價氧化物對應的水化物可以發生。AHA溶液的物質的量濃度為00lmol1L??15（10分）二氧化氯是～種高效消毒劑，沸點為11℃。用氯酸鉀粉末與草酸在60℃時反應可生成二氧化氯等物質，度高于38℃時析出晶體NaClO2。請補充從NaClO2溶液中制得。還可采用鹽酸或雙氧水還原氯酸鈉制備ClO2。原劑制備ClO2更受歡迎，其主要原因是______________。用，過濾即可制得。則上述最適合的過氧化物是________。過氧化氫比理論用量稍多，其目的是________。體加熱，實驗結果如圖所示，則該晶體的組成為________。作催熟劑、除草劑等。氧化鎂的電子式為________。

　　

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