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Which one of the following orders presents the correct sequence of the increasing basic nature of the given oxides? (1) K2O

Correct Answer: Option 2

Explanation:

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


   I n c r e a sin g   b a s i c   s t r e n g t h A l 2 O 3 < M g O < N a 2 O  


 


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


  I n c r e a sin g   b a s i c   s t r e n g t h N a 2 O < K 2 O


 


  C o r r e c t   O r d e r   i s   A l 2 O 3   <   M g O   < N a 2 O   < K 2 O


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