A.
苯酚钠溶液中通入少量CO 2 :2C 6 H 5 O - +CO 2 +H 2 O→2C 6 H 5 OH+CO 3 2 -
B.
甲醛溶液中加入足量的银氨溶液并加热:HCHO+2[Ag(NH 3 ) 2 ] + +2OH - HCOO - +NH 4 + +2Ag↓+3NH 3 +H 2 O
C.
乙醛与碱性氢氧化铜悬浊液混合后加热至沸腾:CH 3 CHO+2Cu(OH) 2 +OH — Cu 2 O↓+CH 3 COO — +3H 2 O
D.
向小苏打溶液中加入醋酸: CO 3 2 - +2CH 3 COOH =CO 2 ↑+H 2 O+2CH 3 COO -