Question

A carbon compound 'P' on heating with excess concentration H2SO4 forms another carbon compound 'Q' which on addition of hydrogen in the presence of Nickel catalyst forms saturated carbon compounds 'R'.One molecule of 'R' on combustion forms two molecules of carbon dioxide and three molecules of water .identify p,q,r and write chemical equation for the reaction involved

Answer 1

hope it will help u i have send it to u

Answer 2

P is ethanol
Q is ethene
R is ethane
C2h5oh-> c2h4 + h2o
C2h4 + h2 - > c2h6