MCQ
During water-gas shift reaction
- ✓carbon monoxide is oxidized to carbon dioxide.
- Bcarbon is oxidized to carbon monoxide.
- Ccarbon dioxide is reduced to carbon monoxide.
- Dwater is evaporated in presence of catalyst.

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Figure $\xrightarrow[{(ii)\,\,NaB{D_4}}]{{(i)\,\,Hg{{(OAc)}_2}\,{H_2}O}}Q$
Figure $\xrightarrow[{(ii)\,\,{H_2}{O_2}\,/\,O{H^ - }}]{{(i)\,\,B{D_6}\,,\,THF}}R$
Products $P, Q$ and $R$ are
