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

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

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