The compound formed along with benzene when benzene sulphonic acid is passed through superheated steam is:

S O_{2}

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S O_{3}

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H_{2} S O_{4}

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H_{2} S

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Solution

The correct option is D $H_{2} S O_{4}$
Benzene can be prepared form sulphonic acids through their hydrolysis. In this process Benzene sulphonic acid is exposed to superheated steam leading to the formation of benzene.

$C_{6} H_{5} - S O_{3} H + H_{2} O \to C_{6} H_{6} + H_{2} S O_{4}$

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