| A | B | C | D | E | F | G |
A | - | - | - | - | - | - | ↓ |
B | - | - | - | - | ↓ | ↓ | ↓ |
C | - | - | - | ↓ | - | ↓ | ↓ |
D | - | - | ↓ | - | ↓ | ↓ | ↓ |
E | - | ↓ | - | ↓ | - | ↓ | - |
F | - | ↓ | ↓ | ↓ | ↓ | - | ↓ |
G | ↓ | ↓ | ↓ | ↓ | - | ↓ | - |
A.水 | B.钠 | C.铜丝 | D.溴水 |
A.苯和水(分液) | B.石油(蒸馏) |
C.BaSO4和H2O(过滤) | D.酒精和水(分液) |
物质(括号内为杂质) | 答案 | 除杂试剂 | ||||
(1) CO2气体(SO2) | |
| ||||
(2) CH4气体(CH2=CH2) | | |||||
(3) Na2CO3固体(NaHCO3) | | |||||
(4) FeCl2溶液(FeCl3) | |
A.铁架台 | B.分液漏斗 | C.烧杯 | D.温度计 |
A.Na | B.K | C.Cu | D.Fe |
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