Question

An organic compound a on heating with concentrated h2 s o4 form of compound b which on addition of hydrogen in the presence of nickel, compounds

Answer 1

hpe it will help you

Answer 2

$\textbf{Incomplete Question}$

C is Ethane as it gives 2 miles of CO2 and 3 moles of H2O.

B is Ethene as it is obtained by addition of One mole of H to B.

A could be Ethanol as B is obtained by hating H2SO4.

C2H5OH ----H2SO4--->C2H4 + H2O

C2H4 + H2 ---Ni--> C2H67

2C2H6 +7O2 ----> 4CO2 + 6H2O + heat and light.