AIIMS 25 May 2019 Morning Question Paper with solutions for online practice
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Question : 69 of 166
Marks:
+1,
-0
Which of the following number of lone pair at central atom zero X e O 3 , X e O 2 F 2 , X e O 4 , X e O 3 F 2 , B a 2 X e F 4
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