Name the organic compound prepared by each of the following reactions :

(i) C₂H₅COONa + NaOH ⟶

(ii) CH₃I + 2[H]⟶

(iii) C₂H₅Br + KOH (alcoholic soln.) ⟶

(iv) CaC₂ + 2H₂O ⟶

Write the equation for the following :

(i) Calcium carbide and water

(ii) Ethene and water (steam)

(ii) Bromoethane and an aqueous solution of sodium hydroxide

Which type of reaction i.e. addition or substitution is shown by ethane and ethene ?

Distinguish between ethane [saturated] and ethene [unsaturated] by drawing their structural formulae.