Chemistry
Grade-8
Easy

Question

Which of the following reaction does depict the reducing property of hydrogen?

  1.  Ca plus straight H subscript 2 ⟶ with capital delta on top 2 CaH subscript 2
  2.  ZnO plus straight H subscript 2 ⟶ with capital delta on top Zn plus straight H subscript 2 straight O
  3.  Mg plus 2 straight H subscript 2 straight O ⟶ with text  Slow  end text on top 2 Mg left parenthesis OH right parenthesis subscript 2 plus straight H subscript 2
  4.  2 straight H subscript 2 straight O ⟶ 2 straight H subscript 2 plus straight O subscript 2

hintHint:

oxidizing and reducing.

The correct answer is: ZnO plus straight H subscript 2 ⟶ with capital delta on top Zn plus straight H subscript 2 straight O


     ZnO plus straight H subscript 2 ⟶ with capital delta on top Zn plus straight H subscript 2 straight O depicit the reducing property of hydrogen as Zn is oxidised.

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