Current location - Health Road Network - Medical equipment - In the laboratory to produce ethylene, often due to the high temperature and the reaction of ethanol and concentrated sulfuric acid to produce a small amount of sulfur dioxide, some people design the

In the laboratory to produce ethylene, often due to the high temperature and the reaction of ethanol and concentrated sulfuric acid to produce a small amount of sulfur dioxide, some people design the

In the laboratory to produce ethylene, often due to the high temperature and the reaction of ethanol and concentrated sulfuric acid to produce a small amount of sulfur dioxide, some people design the following experimental diagram to confirm on the . KMnO 4 solution discolors
(1) I?A; IIB; IIIA; IVD

(2) Magenta fades in device I

(3) SO 2 is removed to avoid interfering with the test of ethylene

(4) Test whether SO 2 is completely removed

(5) Magenta does not fade in device III, acidic KMnO 4 solution fades in device IV

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