Among C, S and P the element (s) that produces (s) `SO_(2)` on reaction with hot conc. `H_(2)SO_(4)` is /are
A. only S
B. only C and S
C. only S and P
D. C, S and P

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Correct Answer - D
`C+H_(2)SO_(4) to CO_(2)SO_(2)+H_(2)O`
`S+ H_(2)SO_(4) to SO_(2)+H_(2)O`
`P_(4)+to H_(2)SO_(4)+SO_(2)+H_(2)O`

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