Question

When ethanol is heated at 170 °C with conc. H₂SO4. it forms an organic compound A and water. The compound A' reacts with hydrogen in the presence of nickel to form 'B'.

a Name the compound A and write its chemical formula. b. Name the compound B and write its chemical formula. c. Write the chemical equation of the reaction involved in formation of "B" from "A".

d. Identify the homologous series to which A and B belongs. 'B' undergoes combustion in presence of sufficient amount of oxygen to rele amount of heat and light. Write its chemical equation.​

Answer 1

Explanation:

1. Compound A Ethene C2H4 ( CH2 = CH2)
2. Compound B Ethane C2H6 ( CH3 – CH3)
3. C2H5OH + H2SO4 -----> C2H4 + H2O

C2H4 + H2/Ni -------> C2H6

4. Homologous of A C3H6 C4H8 C5H10 Alkenes

Homologous of B C3H8 C4H10 C5H12 Alkanes

C2H6 + 5/2 O2 ------> 2 CO2 + 3 H2O