1．
下列变化不属于盐类水解反应的是\(\rm{(}\) \(\rm{)}\)
\(\rm{①NH_{3}+H_{2}O⇌NH_{4}^{+}+OH^{-}②HCO_{3}^{-}+H_{2}O⇌H_{2}CO_{3}+OH^{-}}\)
\(\rm{③HCO_{3}^{-}+H_{2}O⇌H_{3}O^{+}+CO_{3}^{2-}}\)
\(\rm{④A1^{3+}+3HCO_{3}^{-}=Al(OH)_{3}↓+3CO_{2}↑}\)
\(\rm{⑤A1O_{2}^{-}+HCO_{3}^{-}+H_{2}O=Al(OH)_{3}↓+CO_{3}^{2-}}\)
\(\rm{⑥NH_{4}^{+}+2H_{2}O⇌NH_{3}⋅H_{2}O+H_{3}O^{+}}\)．