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p-Block Elements – II — Chemistry STD 12 — Question

Tamilnadu BoardEnglish MediumSTD 12Chemistryp-Block Elements – II1 Mark
MCQ
About 78% of earth atmosphere contains,…………
  • A
    P
  • B
    As
  • ✓
    N
  • D
    Bi
✓

Answer

Correct option: C.
N
N

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