JEE Main · 2021 · Shift-ImediumPB12-050

Chemical nature of the nitrogen oxide compound obtained from a reaction of concentrated nitric acid and P4O10 (in 4:1…

p-Block Elements (Class 12) · Class 12 · JEE Main Previous Year Question

Question

Chemical nature of the nitrogen oxide compound obtained from a reaction of concentrated nitric acid and P4O10\mathrm{P_4O_{10}} (in 4:1 ratio) is:

Options
  1. a

    acidic

  2. b

    basic

  3. c

    amphoteric

  4. d

    neutral

Correct Answera

acidic

Detailed Solution

Strategy: Evaluate the reaction between a strong oxidizing acid and a powerful dehydrating agent.

Step 1: Product Identification The reaction between concentrated Nitric acid (\ceHNO3)(\ce{HNO3}) and Phosphorus pentoxide (\ceP4O10)(\ce{P4O10}) is a dehydration reaction: \ce4HNO3+P4O102N2O5+4HPO3\ce{4HNO3 + P4O10 \to 2N2O5 + 4HPO3} The Nitrogen-containing product is Dinitrogen pentoxide (\ceN2O5)(\ce{N2O5}).

Step 2: Chemical Nature \ceN2O5\ce{N2O5} is a characteristic non-metal oxide (anhydride of \ceHNO3\ce{HNO3}). Such oxides are distinctly acidic in nature.

Answer: (Option) [a] acidic\boxed{\text{Answer: (Option) [a] acidic}}

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