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Study of the First Element - Hydrogen — CHEMISTRY STD 9 — Question

ICSE BoardEnglish MediumSTD 9CHEMISTRYStudy of the First Element - Hydrogen1 Mark
MCQ
A metal oxide that is reduced by hydrogen is
  • A
    $Al _2 O _3$
  • ✓
    CuO
  • C
    CaO
  • D
    $Na _2 O$
✓

Answer

Correct option: B.
CuO
CuO

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