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

Gujarat BoardEnglish MediumSTD 9ScienceIs Matter Around Us Pure ?1 Mark
MCQ
Which of the following are compounds?
  1. CO
  2. No
  3. NO
  4. Co
    • A
      (i) and (ii)
    • B
      (ii) and (iii)
    • C
      (i) and (iii)
    • D
      (ii) and (iv)
    ✓

    Answer

    1. (i) and (iii)

    Explanation:

    CO and NO are compounds. While CO is made up of carbon and oxygen, NO is made up of nitrogen and oxygen.

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