Which is the best drying agent in desiccators?
Correct answer: C. CaCl2
- A. KOH
- B. Gypsum
- C. CaCl2
- D. Silica sand
Explanation
The anhydrous calcium chloride will absorb any water (including condensation, vapour etc) in its environment. It effectively traps that water by changing its molecular make-up.
This question appeared on the UHS MDCAT 2008 paper, which you can sit online with every answer explained.
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