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10th Class Science Metals and Non-metals / धातु और अधातु

  • question_answer 38)
        Generally metals react with adds to give salt and hydrogen gas. Which of the following acids does not give hydrogen gas on reacting with metals(except Mn and Mg)? (a)                           (b)                                (c)                             (d) All of these

    Answer:

                      (c) Nitric acid ()does not give hydrogen gas on reacting with metals (except Mn and Mg) because nitric acid is a strong oxidising agent so, as soon as hydrogen gas is formed in the reaction between metal and dil., theoxidizes this hydrogen to water.


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