Chemistry, asked by teddy17, 1 year ago

Hydrogen will not reduce.
A) Cuo
B) Fe3o4 ( ferric oxide )
C) Sno2
D) Al2O3

Answers

Answered by Anonymous
21
D) option is correct as aluminium is more reactive than hydrogen. So hydrogen can't displace aluminium from Al2O3.

teddy17: thank you so much i was confused I think that Cuo is an answer
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teddy17: sorry I cannot mark your answer as brainliest because by mistake another answer is marked by me as a brainliest
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Answered by mindfulmaisel
2

Hydrogen will not reduced by \bold{\mathrm{Al}_{2} \mathrm{O}_{3}}.

Option: D

Explanation:  

  • Hydrogen can only reduce those substances which are below it in the oxidising table.  
  • This means the cations which are more reactive than hydrogen cannot be reduced by hydrogen Aluminium in this case is far ‘more reactive than hydrogen’, therefore the formation of aluminium cation cannot be achieved by hydrogen.  
  • However Copper, tin and iron lies below hydrogen and are less reactive. So they can be reduced by hydrogen.

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