NEET Chemistry The p-Block Elements (XII) Questions Solved

NEET - 2012

Sulphur trioxide can be obtained by which of the following reaction

(a) CaSO4 + C                          (b) Fe2(SO4)3

(c) S + H2SO4                          (d) H2SO4 + PCl5 

(a) CaSO4 + CCaO + SO2 + CO

(b) Fe2(SO4)3 Fe2O3 + 3SO3

(c) S + 2H2SO4 3SO2 + 2H2O

(d) H2SO4 + PCl5 SO3HCl + POCl3 + HCl

                       chloro sulphonic acid

Thus, SO3 is obtained by heating Fe2(SO4)3

Difficulty Level:

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