MCQ
Oxidation state of elemental carbon is
- ✓$0$
- B$1$
- C$2$
- D$3$
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$C{H_3}CN\xrightarrow{{Na + {C_2}{H_5}OH}}X\xrightarrow{{HN{O_2}}}Y\mathop {\xrightarrow{{{K_2}C{r_2}{O_7}}}}\limits_{{H_2}S{O_4}} Z$
$Y$ is