Sawaal
14
Q:

Which one of the following orders presents the correct sequence of the increasing basic nature of the given oxides?

(1) K2O<Na2O<Al2O3<MgO

(2) Al2O3<MgO<Na2O<K2O

(3) MgO<K2O<Al2O3<Na2O

(4) Na2O<K2O<MgO<Al2O3

A) Option 1 B) Option 2
C) Option 3 D) Option 4

Answer:   B) Option 2



Explanation:

While moving from left to right in periodic table basic character of oxide of elements will decrease.

  ∴→Increasing basic strengthAl2O3<MgO<Na2O 

 

and while descending in the group basic character of corresponding oxides increases. 

 ∴→Increasing basic strengthNa2O<K2O

 

∴ Correct Order is Al2O3 < MgO <Na2O <K2O

Subject: Chemistry
Exam Prep: AIEEE
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