1.

Which type of catalyst is ethanol in the following reaction ?CHCl3 + O2 + C2H5OH→ 2COCl2 + 2HCl(1) Positive catalyst (2) Negative catalyst (3) Bio-catalyst (4) Autocatalyst

Answer»

Correct option: (2) Negative catalyst

Explanation: 

Chloroform on oxidation form phosgene gas which is toxic, therefore to deaccelerate the reaction we pour ethanol solution so that this reaction does not occur.



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