What is the correct sequence of the increasing basic nature of the given oxides?

Question

What is the correct sequence of the increasing basic nature of the given oxides? (A)  textK2 textO < textN texta2 textO < textA textl2 textO3 < textM textg textO (B)  textA textl2 textO3 < textM textg textO < textN texta2 textO < textK2 textO (C)  textM textg textO < textK2 textO < textA textl2 textO3 < textN texta2 textO (D)  textM textg textO < textK2 textO < textN texta2 textO < textA textl2 textO3

Tardigrade Admin · Accepted Answer

Basic nature is directly proportional to the metallic nature.

Metallic nature is inversely proportional to the ionisation enthalpy.

Lesser the ionisation enthalpy, ease of donation of electron and more metallic character due to this most basic oxide will form.

Most metallic oxides are the alkali metal oxides like

K_{2} O

and

Na_{2} O

are more basic than the

M g O

because magnesium belongs to the alkaline earth metals and it is less metallic than the alkali metals.

Al_{2} O_{3}

belongs to the amphoteric oxides p-block metal.

Therefore the correct order of the basic strength of the oxides is

A l_{2} O_{3} < M g O < N a_{2} O < K_{2} O

Q. What is the correct sequence of the increasing basic nature of the given oxides?

$K_{2} O < N a_{2} O < A l_{2} O_{3} < M g O$

$A l_{2} O_{3} < M g O < N a_{2} O < K_{2} O$

$M g O < K_{2} O < A l_{2} O_{3} < N a_{2} O$

$M g O < K_{2} O < N a_{2} O < A l_{2} O_{3}$

Q. What is the correct sequence of the increasing basic nature of the given oxides?

K2​O<Na2​O<Al2​O3​<MgO

Al2​O3​<MgO<Na2​O<K2​O

MgO<K2​O<Al2​O3​<Na2​O

MgO<K2​O<Na2​O<Al2​O3​

$K_{2} O < N a_{2} O < A l_{2} O_{3} < M g O$

$A l_{2} O_{3} < M g O < N a_{2} O < K_{2} O$

$M g O < K_{2} O < A l_{2} O_{3} < N a_{2} O$

$M g O < K_{2} O < N a_{2} O < A l_{2} O_{3}$