What happens when

$A$ : Concentrated $H_{2} S O_{4}$ is added to calcium fluoride?

$B$ : $S O_{3}$ is passed through water?

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Solution

$A$ : Reaction of conc. $H_{2} S O_{4}$ with calcium fluoride

When concentrated $H_{2} S O_{4}$ is added to calcium fluoride it forms hydrogen fluoride and calcium sulphate.

Involved reaction:

$C a F_{2} + H_{2} S O_{4} \to C a S O_{4} + 2 H F$

Final answer: Hydrogen fluoride and calcium sulphate are formed.

$B$ : Reaction of $S O_{3}$ with water

When $S O_{3}$ is dissolved in water. It produces sulphuric acid $(H_{2} S O_{4})$ .
Involved reaction: $S O_{3} + H_{2} \to H_{2} S O_{4}$

Final answer: Sulphuric acid $(H_{2} S O_{4})$ is formed.

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Similar questions

Q. What happens when

S O_{3}

is passed through water?

What would happen if
(i) Calcium oxide is used to dry hydrogen chloride.
(ii) Concentrated hydrochloric acid is kept open.
(iii) Hydrogen chloride prepared in laboratory, is passed through water, using a delivery tube.

What happens when

(a) Borax is heated strongly,

(b) Boric acid is added to water,

(d) $B F_{3}$ is reacted with ammonia?

What do you observe when

(a) Lead nitrate is heated.

(b) Chlorine water is exposed to sunlight.

(d) $H_{2} S$ gas is passed through copper sulphate solution.

(e) Barium chloride is added to sodium sulphate solution.

Why is water not added to concentrated $H_{2} S O_{4}$ in order to dilute it ?

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What happens when A: Concentrated H2SO4 is added to calcium fluoride? B: SO3 is passed through water?

What happens when

$A$ : Concentrated $H_{2} S O_{4}$ is added to calcium fluoride?

$B$ : $S O_{3}$ is passed through water?