Question

Arrange Na2O,K2O,MgOandAL2O3 in the increasing order of basic nature

Answer 1

arrange na2o, k2o, mgo, al2o3 in increasing order of basic nature
it's answer is na2o>mgo>al2o3>k2o
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Answer 2

Answer:  Increasing order of basic nature: $Al_{2}O_{3} < MgO < Na_{2}O < K_{2}O$

Explanation:

As we go down the group, basic nature of metal oxides increases and as we go from left to right in a period the basic nature of metal oxide decreases.

• In a group, the metallic character increases down the group and left to right metallic character decreases.

• Metallic character is directly proportional to basic nature of its oxide. The more metallic character a metal has the more basic nature its oxide has.

• Therefore, in the 1st group Potassium has more metallic character than sodium so its oxide is more basic. Likewise in a period Mg has more metallic nature than Aluminum so its oxide is more basic in nature.

• The increasing order for basic nature is:

$Al_{2}O_{3} < MgO < Na_{2}O < K_{2}O$

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