Can't understand this. English Please! :) :)
<span>a regultate is to control or direct by a rule, principle, or method.</span>
Answer:
The presence of 1-2% ethanol as catalyst, suppresses the oxidation of chloroform with oxygen to give a poisonous gas called phosgene. ... Here glycerol acts as negative catalyst. Criteria or characteristics of catalysts. i. The mass and chemical composition of catalyst should remain unchanged at the end of the reaction.
Explanation:
Umm I think it might be a b c in order?
