Is there any way to know the regent is dehydrating agent or not

is their any way to know the regent is dehydrating agent or not??
@Shwetanshu_2018 bro , @Shaquib sir

  • tell the dehydrating agent mainly used in jee advanced

There are few dehydrating agents that you have to remember, i don’t think there is any trick to know this

kindly name them

sulphuric acid, concentrated phosphoric acid, hot ceramics, hot aluminum oxide.

If I’ll recall any other regents also then I’ll let you know

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