MCQ
Nitrating mixture is
- AFuming nitric acid
- ✓Mixture of conc. ${H_2}S{O_4}$ and conc. $HN{O_3}$
- CMixture of nitric acid and anhydrous zinc chloride
- DNone of these

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$(A)$ ${SO}_{3}$ $(B)$ ${NO}_{3}^{-}$ $(C)$ ${PCl}_{3}$ $(D)$ ${CO}_{3}^{2-}$