Question

Arrange the following in decreasing order of acidity :
MnO, Mn2O3, MnO2.

Answer 1

Answer:

Explanation:

first, look at the oxidation states of Mn in the oxides.....

MnO= +2

Mn₂O₃= +3

MnO₂= +4

so the order is: MnO < Mn₂O₃ < MnO₂

Answer 2

Arranging the given compounds in decreasing order of acidity as follows:

  $MnO_{2}$ > $Mn_{2}O_{3}$ > MnO

Explanation:

More is the oxidation state of central atom then more will be its ability to accept electrons or lone pair of electrons therefore, will will act as Lewis acid.

Oxidation state of Mn in MnO is +2.

Oxidation state of Mn in $Mn_{2}O_{3}$ is as follows.

                 2x - 6 = 0

                   x = +3

Oxidation state of Mn in $MnO_{2}$ is +4. Since, out of the given species Mn has highest oxidation state in $MnO_{2}$. Hence, it is the most acidic.

Learn more about acidity:

https://brainly.in/question/6154706

https://brainly.in/question/9214440

#Learnwithbrainly