工作就用美篇工作版","guide_search_desc":"海量模板范文,一键做同款 工作就用美篇工作版","img_beautify_switch":0,"ad_free":0,"text_direction":1,"template":{"id":2169,"series_id":43,"theme_id":43},"container":{},"redirect":{"redirect_type":1,"img_url":false,"link_url":"/wap/downloadpage/backpage","button_bg_color":false,"button_desc":false,"redirect_desc":false},"edit_date_str":"发布于 2023-11-14","current_time":1731861465,"font_name":"","rcmd_meipian":0,"hide_article_link":0,"from_wechat":false,"music_name":"","origin_status":0,"password_v2":"","font_id":0,"title_style":"","rich_text_title":"","enable_download":1,"cover_thumb":"https://ss-mpvolc.meipian.me/users/504584960/5cf161007cfeec65c595982eb090528c__jpg.heic","has_video":false,"gift_switch":1,"enable_watermark":1,"content":{"article_id":387813131,"content":[{"audio_del":0,"audio_music_id":0,"ext":{"unique_id":"6583acd9f5e35701f990ae52272d1eeb"},"img_del":0,"img_height":2000,"img_size":93,"img_url":"https://ss-mpvolc.meipian.me/users/504584960/5cf161007cfeec65c595982eb090528c__jpg.heic","img_width":1500,"is_origin":false,"location_del":0,"sectionPublished":false,"sell_del":0,"source":0,"text":"
实验目的
1.学会有关烃的性质的实验操作
2.掌握饱和烃与不饱和烃、苯与甲苯的鉴别方法
实验操作:取一支试管,加入十滴高锰酸钾和三滴硫酸,将石蜡加入试管中,观察并解释发生的现象。
〔实验内容〕
饱和烃的性质
实验内容 现象
高锰酸钾+稀硫酸+液体石蜡 不褪色
解释:液体石蜡含饱和烃,不能被高锰酸钾氧化.
溴水+液体石蜡 不褪色
解释:液体石蜡含饱和烃,不能与溴水发生加成反应。
高锰酸钾+稀硫酸+松节油 褪色
解释:松节油含不饱和烃,能被高锰酸钾氧化
溴水+松节油 褪色
解释:松节油不含饱和烃,溴水发生加成反应
高锰酸钾+稀硫酸+松节油 褪色
解释:松节油是不饱和烃,能被高锰酸钾氧化。
溴水+松节油 褪色
解释:松节油是不饱和烃,能与溴水发生加成反应。
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1.学会有关烃的性质的实验操作
2.掌握饱和烃与不饱和烃、苯与甲苯的鉴别方法
实验操作:取一支试管,加入十滴高锰酸钾和三滴硫酸,将石蜡加入试管中,观察并解释发生的现象。
〔实验内容〕
饱和烃的性质
实验内容 现象
高锰酸钾+稀硫酸+液体石蜡 不褪色
解释:液体石蜡含饱和烃,不能被高锰酸钾氧化.
溴水+液体石蜡 不褪色
解释:液体石蜡含饱和烃,不能与溴水发生加成反应。
高锰酸钾+稀硫酸+松节油 褪色
解释:松节油含不饱和烃,能被高锰酸钾氧化
溴水+松节油 褪色
解释:松节油不含饱和烃,溴水发生加成反应
高锰酸钾+稀硫酸+松节油 褪色
解释:松节油是不饱和烃,能被高锰酸钾氧化。
溴水+松节油 褪色
解释:松节油是不饱和烃,能与溴水发生加成反应。
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