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#1 2017-02-06 10:37:02
12th Class Chemistry Quiz Question.
12th Class Quizzes 12th Class Chemistry
Question:
Mendeleev failed to specify position for__________ in the periodic table.
Option A):
Hydrogen
Option B):
Nitrogen
Option C):
Oxygen
Option D):
Helium
Correct Answer is Option D):
Helium
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2017-02-06 10:37:02
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