Chemistry
The substance which can be used as drying as well as dehydrating agent is :
- conc. H2SO4
- conc. HNO3
- Conc. HCl
- conc. H2CO3
Sulphuric Acid
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Answer
Conc. H2SO4
Reason — Conc. H2SO4 has a great affinity for water. It readily removes chemically combined water molecules i.e., elements of water from other compounds. Hence, it acts as drying as well as dehydrating agent.
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Assertion (A): Sulphuric acid is known as the oil of vitriol.
Reason (R): Sulphuric acid was first obtained by heating crystals of green vitriol.
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