10th Class Science Metals and Non-metals Question Bank 10th CBSE Science Metals and Non-metals

  • question_answer   Metals replace hydrogen from dilute acids, whereas non-metals do not. Why? [CBSE (AI) 2008]

    Answer:

                      Hydrogen from dilute acids can only be replaced if electrons are supplied to H+ Metals have a tendency to lose electrons and hence they supply electrons, i.e., they are electron donors. That is why metals displace hydrogen from dilute acids. On the other hand, non-metal is an electron acceptor. It cannot supply electrons to H^ and hence, it does not displace hydrogen from dilute acids.


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