9.
下列反应中,属于取代反应的是\(\rm{(}\) \(\rm{)}\)
\(\rm{①CH_{3}CH=CH_{2}+Br_{2} \overset{500^{\circ}C }{ }CH_{2}BrCH=CH_{2}+HBr}\)
\(\rm{②CH_{3}CH_{2}Br+NaOH \xrightarrow[\triangle ]{{乙醇}}CH_{2}=CH_{2}+H_{2}O+NaBr}\)
\(\rm{③CH_{3}COOCH_{2}CH_{3}+H_{2}O}\) \(\rm{ \xrightarrow[\triangle ]{{稀}H_{2}SO_{4}}CH_{3}COOH+CH_{3}CH_{2}OH}\)
\(\rm{④C_{6}H_{5}OH+3H_{2} \xrightarrow[\triangle ]{{催化剂}}C_{6}H_{11}OH}\).