why non metal is not able to displace H2 from dil. acid?
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Metals are usually electron donors, that is, they are electropositive. Hydrogen is also an electron donor in Water molecule to Oxygen atom. Metals with more electropositivity can replace Hydrogen from water like Sodium. So such metals replace Hydrogen in dilute acids and form salts.
Example: 2 Na + 2 H Cl ==> 2 Na Cl + H2
Non metals can be electron acceptors or electron donors. If they are electron acceptors, then they are electronegative. They may replace Oxygen or Hydroxide or a Halogen. But they do not replace Hydrogen.
Many non-metals are below Hydrogen in the reactivity series. They are weaker than Hydrogen. So they do not displace Hydrogen from dilute acids. So nonmetals do not react with dilute acids.
Example: 2 Na + 2 H Cl ==> 2 Na Cl + H2
Non metals can be electron acceptors or electron donors. If they are electron acceptors, then they are electronegative. They may replace Oxygen or Hydroxide or a Halogen. But they do not replace Hydrogen.
Many non-metals are below Hydrogen in the reactivity series. They are weaker than Hydrogen. So they do not displace Hydrogen from dilute acids. So nonmetals do not react with dilute acids.
Answered by
3
Bcz they dont react with acids and so do not displace H2 from it
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karunakarkv:
i m not satisfied with this
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