pBlock ElementsII 1 Question 29

29. Ammonia can be dried by

$(2000,1 M)$

(a) conc. $\mathrm{H}{2} \mathrm{SO}{4}$

(b) $\mathrm{P}{4} \mathrm{O}{10}$

(c) $\mathrm{CaO}$

(d) anhydrous $\mathrm{CaCl}_{2}$

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Solution:

  1. $\mathrm{CaO}$, a basic oxide, is most suitable for drying of basic ammonia.