Addition of conc. \( \mathrm{HNO}_{3} \) to conc. \( \mathrm{H}_{2} \mathrm{SO}_{4} \) gives :
(...
Addition of conc. \( \mathrm{HNO}_{3} \) to conc. \( \mathrm{H}_{2} \mathrm{SO}_{4} \) gives :
(A) \( \mathrm{SO}_{4}^{2-} \)
(B) \( \mathrm{SO}_{3} \)
(C) \( \mathrm{NO}_{3}^{-} \)
(D) \( \mathrm{NO}_{2}^{+} \)
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