下列变化是通过取代反应来实现的是()A．CH3CH2OH―→CH3CHOB．CH2===CH2―→CH3—CH2BrC．D．CH3CH2OH―→CH2===CH2

Question

下列变化是通过取代反应来实现的是(　　)

A．CH₃CH₂OH―→CH₃CHO               B．CH₂===CH₂―→CH₃—CH₂Br

C．               D．CH₃CH₂OH―→CH₂===CH₂

下列变化是通过取代反应来实现的是(　　)

(　　))

A．CH₃CH₂OH―→CH₃CHO               B．CH₂===CH₂―→CH₃—CH₂Br

A．CH₃CH₂OH―→CH₃CHO               B．CH₂===CH₂―→CH₃—CH₂BrCH₃CH₂OH―→CH₃CHO               B．CH₂===CH₂―→CH₃—CH₂Br₃₂―→CH₃CHO               B．CH₂===CH₂―→CH₃—CH₂Br₃CH₂===CH₂―→CH₃—CH₂Br₂===CH₂―→CH₃—CH₂Br₂―→CH₃—CH₂Br₃₂

C．               D．CH₃CH₂OH―→CH₂===CH₂

C．               D．CH₃CH₂OH―→CH₂===CH₂               D．CH₃CH₂OH―→CH₂===CH₂D．CH₃CH₂OH―→CH₂===CH₂CH₃CH₂OH―→CH₂===CH₂₃₂―→CH₂===CH₂₂===CH₂₂

Answer 1

C

C

C