AIIMS 25 May 2019 Morning Question Paper with solutions for online practice
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Question : 91 of 166
Marks:
+1,
-0
Assertion :Y b + 2 G d + 2
Reason : The electronic configuration of Gd is[ X e ] 4 f 7 5 d 2 6 s 2
Reason : The electronic configuration of Gd is
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