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  • Can someone explain Sulphur trioxide can be obtained by which of the following reaction:

Sulphur trioxide can be obtained by which of the following reaction:

  • Option 1)

    CaSO_{4}+C\overset{\Delta }{\rightarrow}

  • Option 2)

    Fe_{2}(SO_{4})_{3}\overset{\Delta }{\rightarrow}

  • Option 3)

    S+H_{2}SO_{4}\overset{\Delta }{\rightarrow}

  • Option 4)

    H_{2}SO_{4}+PCI_{5}\overset{\Delta }{\rightarrow}

 

Answers (1)

best_answer

As learnt

Sulfur trioxides -

In the gaseous state monomeric So3 has a planar structure with  S-O bond distance of 143 pm and O-S-O bond angle of 120 degree. So3 molecule is a resonance hybrid

- wherein

 

 

Fe_{2}(SO_{4})_{3}\overset{\Delta }{\rightarrow}Fe_{2}O_{3} \: + \: 3SO_{3}

\therefore SO_{3} is obtained by heating Fe_{2}(SO_{4})_{3}


Option 1)

CaSO_{4}+C\overset{\Delta }{\rightarrow}

This option is incorrect

Option 2)

Fe_{2}(SO_{4})_{3}\overset{\Delta }{\rightarrow}

This option is correct

Option 3)

S+H_{2}SO_{4}\overset{\Delta }{\rightarrow}

This option is incorrect

Option 4)

H_{2}SO_{4}+PCI_{5}\overset{\Delta }{\rightarrow}

This option is incorrect

Posted by

Plabita

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