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The Language of Chemistry — CHEMISTRY STD 9 — Question

ICSE BoardEnglish MediumSTD 9CHEMISTRYThe Language of Chemistry1 Mark
MCQ
The valency of nitrogen in nitrogen dioxide $(NO_2)$ is
  • A
    one
  • B
    two
  • C
    three
  • ✓
    four
✓

Answer

Correct option: D.
four

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