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Subjects
Science CBSE
Class 9
Atoms and molecules
Textbook questions
23.
NCERT Exemplar II
Exercise condition:
2
m.
Answer the following multiple choice questions:
1.
The chemical symbol for nitrogen gas is
N
Ni
\(N^+\)
\(N_2\)
2.
The chemical symbol for sodium is
Sd
Sm
Na
So
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