An organic compound A on heating with concentrated H2SO4 forms a compound B which on addition of one mole of hydrogen in presence of Ni forms a compound C. One mole of compound C on combustion forms two moles of CO2 and 3 moles of H2O. Identify the compounds A, B and C and write the chemical equations of the reactions involved
Compound A is ethanol. When it is heated with concentrated sulphuric acid, we get ethene. So, compound B is ethene. This can be shown by following equation
CH3CH2OH ------Conc.H2SO4→ CH2 = CH2 + H2O
When ethene is heated in the presence of nickel, we get ethane. This can be shown by following equation.
CH2 = CH2 ------Ni→ C2H6 (Compound C)
When 1 mole of ethane is burnt, we get 2 moles of carbon dioxide and 3 moles of water; as shown by following equation.
C2H6 + 7O2 → 4CO2 + 6H2O
