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Class 10ScienceChemical Reactions and EquationsMix Examples - Chemical Reactions and Equations
Difficult

What happens when hydrogen gas is passed over heated copper oxide $(CuO)$?

  • A
    Black coating on the surface turns blue.
  • B
    Black coating on the surface turns green.
  • C
    Black coating on the surface turns brown.
  • D
    Black coating on the surface turns white.
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Class 10 Questions

Class 10

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Chapter

Chemical Reactions and Equations

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Mix Examples - Chemical Reactions and Equations

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