1.

Which of the following pyroacid has X-X bond

Answer»

<P>`H_(2)S_(2)O_(7)`
`H_(2)S_(2)O_(5)`
`H_(4)P_(2)O_(5)`
`H_(4)P_(2)O_(6)`

SOLUTION :(i) `H-O-underset(OH)underset(|)overset(O)overset(||)S-O-underset(OH)underset(|)overset(O)overset(||)S-O-H`
(II) `HO-underset(O)underset(||)overset(O)overset(||)S-overset(O)overset(||)S-OH`
(iii) `H-O-overset(O)overset(||)P-O-overset(O)overset(||)P-OH`
(iv) `H_(4)P_(2)O_(6): HO-underset(OH)underset(|)overset(O)overset(||)P-underset(OH)underset(|)overset(O)overset(||)P-OH`


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