Question

During dehydration the substance that is usually lost by the body is

Answer 1

I think it is waste maste materials or excess of water.

Answer 2

During dehydration the substance that is usually lost by the body is Water.

Explanation:  

• Dehydration is a process by which water is lost from a molecule. Water is removed chemically from a substance unlike in drying agent where the physical presence of water is removed.  

• The substance which removes water chemically is known as dehydrating agent. Concentrated. Sulphuric acid is a very popular dehydrating agent.

• This reaction is important in the formation of a large number of substances like alkene from alcohols etc. The water is removed in liquid form or by making the acid dilute.