Q:
      
      
         
            
Which one of the following orders presents the correct sequence of the increasing basic nature of the given oxides?
(1) 
(2) 
(3) 
(4) 
         
       
      
      
      
          
      
      
          Answer & Explanation
         Answer: B) Option 2         
         
Explanation: While moving from left to right in periodic table basic character of oxide of elements will decrease.
   
 
and while descending in the group basic character of corresponding oxides increases. 
 
 
       
      
      
      
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