CH-429
Separation and purification
Chemistry · Secondary 3 · Medium · Separation and purification
A sample of gas is collected over water. The gas is dried by passing it through concentrated sulfuric acid.
Which property of concentrated sulfuric acid makes it suitable as a drying agent in this case?
Which property of concentrated sulfuric acid makes it suitable as a drying agent in this case?
- It absorbs water vapour without reacting with the gas.
- It neutralises all acidic gases present.
- It cools the gas so water condenses.
- It reacts with the gas to form a dry solid.
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