C2H5OH(l)+H2SO4(l)→C2H5−OSO3H(l)+H2( g)\begin{array}{l} \mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}(\mathrm{l})+\mathrm{H}_{2} \mathrm{SO}_{4}(\mathrm{l}) \rightarrow \mathrm{C}_{2} \mathrm{H}_{5}- \\ \mathrm{OSO}_{3} \mathrm{H}(\mathrm{l})+\mathrm{H}_{2}(\mathrm{~g}) \end{array}C2H5OH(l)+H2SO4(l)→C2H5−OSO3H(l)+H2( g)
C6H5−C≡N+2H2O⟶HClC6H5−COOH+NH3+CO2\begin{array}{l} \mathrm{C}_{6} \mathrm{H}_{5}-\mathrm{C} \equiv \mathrm{N}+2 \mathrm{H}_{2} \mathrm{O} \stackrel{\mathrm{HCl}}{\longrightarrow} \mathrm{C}_{6} \mathrm{H}_{5}-\mathrm{COOH} \\ +\mathrm{NH}_{3}+\mathrm{CO}_{2} \end{array}C6H5−C≡N+2H2O⟶HClC6H5−COOH+NH3+CO2
(CH3CO)2O(l)+NH3( g)→ΔCH3CO−NH2( s)+CH3COOH(l)\begin{array}{l} \left(\mathrm{CH}_{3} \mathrm{CO}\right)_{2} \mathrm{O}(\mathrm{l})+\mathrm{NH}_{3}(\mathrm{~g}) \stackrel{\Delta}{\rightarrow} \mathrm{CH}_{3} \mathrm{CO}-\mathrm{NH}_{2}(\mathrm{~s}) \\+\mathrm{CH}_{3} \mathrm{COOH}(\mathrm{l})\end{array}(CH3CO)2O(l)+NH3( g)→ΔCH3CO−NH2( s)+CH3COOH(l)
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