Chemistry · Group 13 to Group 18 Elements

Nitrate ion on reacting with conc. gives:

Nitrate ion on reacting with conc. \( \boldsymbol{H}_{2} \boldsymbol{S} \boldsymbol{O}_{4} \) gives:

  • A. nitrogen dioxide
  • B. nitrogen pentaoxide
  • C. \) nitrous oxide
  • D. None of the above

Step-by-step solution

Nitrate ion reacts with concentrated sulfuric acid to form nitric acid, which then decomposes upon heating to give nitrogen dioxide (NO2) as a brown gas: 4HNO3 → 4NO2 + O2 + 2H2O.
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