1.

In which of the following options all species contain X–O–X bonds in structure (X = central atom)

Answer»

`H_(2)S_(2) O_(5), S_(3), O_(9), S_(2)O_(6)^(-2)`
`P_(4)O_(10), P_(4)O_(6), H_(3)P_(3)O_(9)`
`N_(2)O_(5), N_(2)O, N_(2)O_(4)`
`H_(4)P_(2)O_(7), H_(4)P_(2)O_(6), H_(4)P_(2)O_(5)`

Answer :B


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