If the valancy of carbon is 4 and that of sulphur is 2 , work out the formula of of the compound formed by the combination of carbon with sulphur. what is the name of the compound?

Explanation

Compound X is ethanoic acid `CH_3COOH`. If freezes at 290 K (`17^@C`), the temperature during winter season. It has the molecular formula `C_2H_4O_2`.
On warming with ethanol, it forms ethyl ethanoate having a sweet smell. Thus, Y is ethyl ethanoate `(CH_3COOC_2H_5)`.
Chemical equation for the reaction is written as under:
`CH_3COOH + C_2H_5OH overset("Heat")underset("conc. "H_2SO_4)to underset("(Ester)")(CH_3COOC_2H_5) + H_2O`