Ferric sulphate heating gives:

S O_{2}

and

S O_{3}

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S O_{2}

only

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S O_{3}

only

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S

only

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Solution

The correct option is B $S O_{3}$ only
On heating, ferric sulphate undergoes thermal decomposition and produces iron (III) oxide and sulphur trioxide.
This thermal decomposition reaction requires a high temperature of about 500 $^{\circ}$ C to 700 $^{\circ}$ C.

The reaction is as follows:

$F e_{2} (S O_{4})_{3} \to F e_{2} O_{3} + 3 S O_{3}$

Hence, the correct option is (C).

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Similar questions

S O_{3}

S O_{2} + \frac{1}{2} O_{2}

The heat of formation of $S O_{2}$ is:

$S + \frac{3}{2} O_{2} \to S O_{3} + 2 x k J$
$S O_{2} + \frac{1}{2} O_{2} \to S O_{3} + y k J$

S + \frac{3}{2} O_{2} ⟶ S O_{3} + 2 x k c a l

S O_{2} + \frac{1}{2} O_{2} ⟶ S O_{3} + y k c a l

S O_{2}

S + \frac{3}{2} O_{2} \to S O_{3} + 2 x k c a l

S O_{2} + \frac{1}{2} O_{2} \to S O_{3} + y k c a l

S O_{2}

S + \frac{3}{2} O_{2} \to {S O}_{3} + 2 x

{S O}_{2} + \frac{1}{2} O_{2} \to {S O}_{3} + y

{S O}_{2}

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