1.

Identify the true statement.

Answer»

Among the oxides MNO, `Mn_2O_3, MnO_2 and Mn_2O_7` , the last one is most acidic
`H^-` is a powerful reductant and a very strong base
In the MOLECULE `FNO_3`, two oxygen atoms are in -1 OXIDATION state each
There are four P-P bonds in the `P_4` molecule

Solution :(A)As oxidation state of Mn INCREASES, the difference in values of electronegativities of Mn and O decrease and thus acidic character increase, In `Mn_2O_7` , the Mn is in highest oxidation state +7.So, it is most acidic .
(B)It is factual.


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