1.

The correct order of acidic strength of acids : H_3PO_4, H_4P_2O_7 and H_5P_3O_10 is ..........

Answer»

`H_(3)PO_(4) gt H_(4)P_(2)O_(7) gt H_(5)P_(3)O_(10)`
`H_(4)P_(2)O_(7) gt H_(5)P_(3)O_(10) gt H_(3)PO_(4)`
`H_(5)P_(3)O_(10) gt H_(4)P_(2)O_(7) gt H_(3)PO_(4)`
`H_(5)P_(3)O_(10) gt H_(3)PO_(4) gt H_(4)P_(2)O_(7)`

SOLUTION :Acidic strength is GREATER if the number of OH GROUPS are less per P = O groups.


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