CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon


Question

Which of the following is a method of preparation of CO?


  1. CO can be prepared by heating potassium ferrocyanide with conc.

  2. By heating oxides of heavy metals

  3. By passing steam over red hot coke

  4. By dehydration of formic acid with conc. at 373 K


Solution

The correct options are
A

CO can be prepared by heating potassium ferrocyanide with conc.


B

By heating oxides of heavy metals


C

By passing steam over red hot coke


D

By dehydration of formic acid with conc. at 373 K


Corbon monoxide can be prepared by various different methods.

1. By incomplete combustion of carbon and carbon containing fuels or direct oxidation of carbon in limited supply of air or oxygen.

2C+O22CO

2. By heating oxides of heavy metals, e.g. iron, zinc etc. with carbon.

Fe2O3+3C2Fe+3CO

ZnO+CZn+CO

3. In the laboratory, pure CO is prepared by dehydration of formic acid (HCOOH) with conc. H2SO4 at 373 K.

HCOOHH2SO4−−−CO      +H2O

Formic acid              373K        Carbon Monoxide

(H2SO4 acts as a dehydrating agent)

4. In the laboratory, CO can be prepared by heating potassium ferrocyanide, K4[Fe(CN)6], with conc H2SO4.

5. Commercially, CO is produced by passing steam over red hot coke.

C(s)+H2O(g)4731273 K−−−−−−CO(g)+H2(g)Water Gas

flag
 Suggest corrections
thumbs-up
 
0 Upvotes


Similar questions
View More


People also searched for
View More



footer-image