Carbon exists in the atmosphere in the form of

Which of the following is used in conveyor belts?

What is the molecular formula of sodium ethanoate?

Identify the compounds $A$ to $E$ in the following reaction sequence:
$(i)$ $CH_3CH_2OH \xrightarrow[dil. HCl]{KMnO_4/KOH} (A) + H_2O$
$(ii)$ $CH_3CH_2OH + A \xrightarrow[\Delta]{Conc. H_2SO_4} B + H_2O$
$(iii)$ $B + NaOH \rightarrow C + CH_3CH_2OH$
$(iv)$ $A + NaHCO_3 \rightarrow C + D + H_2O$
$(v)$ $CH_3CH_2OH + E \rightarrow CH_3CH_2ONa + H_2$

What is the molecular formula of methanol?

Which is the simplest compound of the ketone group?