In how many reactions `CO_(2)` gas is released out after reaction with `NaHCO_(3)`
(1) `CH_(3)-underset(O)underset(||)overset(O)overset(||)(S)-O-H+NaHCO_(3) rarr`
(2) `CH_(3)-underset(O)underset(||)(C)-O-H+NaHCO_(3) rarr`
`CH_(3)-CH_(2)-OH+NaHCO_(3) rarr`
(5) `CH_(3)-C-=C-H+NaHCO_(3) rarr`