Question

49. Sulphur trioxide can be obtained by which of the
following reaction?
​

Answer 1

Answer:

SO3 is obtained during the reaction Fe (SO4)3 Δ ----> Fe2O3 + 3SO3

option (b) is correct.

Explanation:

(1) CaSO4 + C (Δ) ----> SO2 + H2O

(2) Fe (SO4)3 Δ ----> Fe2O3 + 3SO3

(3) 2CaSO4 + C (Δ) ----> 2CaO + 2SO2 + CO2

(4) H2SO4 + PCl5 ----> POCl3 + HSO3Cl + HCl

Sulfur trioxide is obtained when iron trisulfate is heated in the presenec of air and pressure the products are iron oxide and sulfur trioxide.

Thus SO3 is obtained during the reaction Fe (SO4)3 Δ ----> Fe2O3 + 3SO3

i hope its helpful answer

mark me as brainlist

Answer 2

Option D is the correct answer