Which one of the following is used as a drying agent?
Correct answer: C. CaCl2 anhydrous
- A. NaHCO3
- B. CaCO3.H2O
- C. CaCl2 anhydrous
- D. Na2SO4.H2O
Explanation
CaCl2 (anhydrous calcium chloride): Calcium chloride is a widely used drying agent due to its strong hygroscopic properties. It effectively absorbs moisture from the air, making it useful for drying applications in laboratories, industries, and even for de-icing roads.
This question appeared on the ETEA MDCAT 2009 paper, which you can sit online with every answer explained.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Sublimation and Distillation
Sublimation separates a sublimable solid from non-sublimable impurities by direct conversion between solid and vapour, followed by deposition. Distillation separates liquids through differences in boiling points, including simple, fractional, steam and vacuum distillation, and the choice depends on volatility, miscibility and thermal stability.
Practise Experimental Techniques in Chemistry
79 free Experimental Techniques in Chemistry MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Chemistry questions like this
Chemistry is on 14 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.