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Give a reason to support that sulphuric ...

Give a reason to support that sulphuric acid is a dehydrating agent.

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Concentrated sulphuric acid is used as a drying and dehydrating agent because it has a strong affinity for water and thus it absorbs water quickly. It being a hygroscopic substance absorb water from other substances without dissolving in it, so it is considered as a good dessicating or drying agent.
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