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Question

In the laboratory preparation, calcium hydroxide is preferred than other caustic alkalis. Explain why.


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Solution

Calcium hydroxide CaOH2 is preferred over other caustic alkalis:

  • As calcium hydroxide is less expensive (cheap) than other caustic alkalis, it is chosen.
  • It does not show deliquescent nature. The process by which a material absorbs moisture from the atmosphere until it dissolves and forms a solution in the absorbed water is known as deliquescence.

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