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Is Matter Around Us Pure? — Science STD 9 — Question

CBSE BoardEnglish MediumSTD 9ScienceIs Matter Around Us Pure?2 Marks
Question
Classify the following into elements and compounds:
  1. H2O
  2. He
  3. Cl2
  4. CO
  5. Co
✓

Answer

  1. H2O: Compound

  2. He: Element

  3. Cl2: Element

  4. CO: Compound

  5. Co: Element

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