Задание

Укажите, какие химические реакции написаны верно:

CH3 – C ≡ CH + 2НBr → CH3 – CН2 – CHBr2

CH3 – C ≡ CH + 2HCl → CH3 – CHCl – CH2Cl

CH3 – C ≡ CH + H2O→ CH3 – CH2 – CН = O

CH3 – C ≡ CH + 2HBr → CH3 – CBr2– CH3

2CH3 – C ≡ CH + 2Na → 2CH3 – C ≡ CNa + H2