鉴别水杨酸及其盐类,最常用的试液是A.碘化钾 B.碘化汞钾 C.疏酸亚铁 D.三氯化铁 E.亚铁氰化钾

作者: tihaiku 人气: - 评论: 0
问题 鉴别水杨酸及其盐类,最常用的试液是
选项 A.碘化钾 B.碘化汞钾 C.疏酸亚铁 D.三氯化铁 E.亚铁氰化钾
答案 D
解析 本题考查水杨酸及其盐类的鉴别方法。水杨酸及其盐类在中性或弱酸性条件下,与三氯化铁试液反应,生成紫堇色配位化合物。故答案为D。

相关内容:鉴别,水杨,盐类,最常,试液,碘化钾,碘化,汞钾,疏酸,亚铁,氰化钾

猜你喜欢

发表评论
更多 网友评论0 条评论)
暂无评论
错误啦!

错误信息

  • 消息: [程序异常] : MISCONF Redis is configured to save RDB snapshots, but it's currently unable to persist to disk. Commands that may modify the data set are disabled, because this instance is configured to report errors during writes if RDB snapshotting fails (stop-writes-on-bgsave-error option). Please check the Redis logs for details about the RDB error.
  • 文件: /twcms/kongphp/cache/cache_redis.class.php
  • 位置: 第 85 行
    <?php echo 'KongPHP, Road to Jane.'; ?>