P-Block Elements Ques 577

Question: $ P_4O_{10} $ is not used to dry $ NH_3 $ gas because

Options:

A) $ P_4O_{10} $ reacts with moisture in $ NH_3 $ .

B) $ P_4O_{10} $ is not a drying agent.

C) $ P_4O_{10} $ is acidic and $ NH_3 $ is basic.

D) $ P_4O_{10} $ is basic and $ NH_3 $ is acidic.

Show Answer

Answer:

Correct Answer: C

Solution:

$ \underset{Acidic}{\mathop{P_4O_{10}}}+2H_2O\xrightarrow{{}}\underset{\begin{smallmatrix} metaphosphoric \\ acid \end{smallmatrix}}{\mathop{4HPO_3}} $ $ \xrightarrow[basic]{NH_3}\underset{\begin{smallmatrix} metaammonium \\ phosphate \end{smallmatrix}}{\mathop{NH_4PO_3}} $



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