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10th Class Science Sample Paper Sample Paper - 3 Term - 1

  • question_answer
      What is aqua regia? How is it obtained? State its properties.

    Answer:

      Aqua regia is a reagent, which can dissolve inactive metals like gold, platinum, etc.                                           (1) Aqua regia is obtained by adding cone. HCl (3 parts) and cone. HNO3 (1 part).                                                      (1) Properties It has highly corrosive and fuming nature.                                                                                                      (1)


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