2. Questions Bank
  3. 9th Class
  4. Science
  5. Is Matter Around Us Pure

9th Class Science Is Matter Around Us Pure Question Bank 9th CBSE Science Is Matter Around Us Pure

  • question_answer
      Classify the following as physical or chemical properties: (a) The composition of a sample of steel is 98% iron, 1.5% carbon and 0.5' other elements. (b) Zinc dissolves in hydrochloric acid with the evolution of hydrogen gas (c) Metallic sodium is soft enough to be cut with a knife. (d) Most metal oxides form alkalis on interacting with water. [NCERT Exemplar]

    Answer:

         Physical properties?(a) and (c) Chemical properties?(b) and (d)


You need to login to perform this action.
You will be redirected in 3 sec spinner