COMEDK · Chemistry · 22. p Block Elements (Group 15, 16, 17 & 18)
When conc. \(\mathrm{H}_{2} \mathrm{SO}_{4}\) is heated with \(\mathrm{P}_{2} \mathrm{O}_{5}\), the acid is converted into
- A sulphur
- B sulphur dioxide
- C sulphur trioxide
- D a mixture of sulphur dioxide and sulphur trioxide
Answer & Solution
Correct Answer
(C) sulphur trioxide
Step-by-step Solution
Detailed explanation
When eonc. \(\mathrm{H}_{2} \mathrm{SO}_{4}\) is heated with \(\mathrm{P}_{2} \mathrm{O}_{5}\), the acid is convertod into sulphur trioxide. \[ \mathrm{H}_{2} \mathrm{SO}_{4}+\mathrm{P}_{2} \mathrm{O}_{5} \longrightarrow \mathrm{SO}_{3}+2 \mathrm{HPO}_{3} \]
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