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Is Matter Around Us Pure? — Science STD 9 — Question

CBSE BoardEnglish MediumSTD 9ScienceIs Matter Around Us Pure?2 Marks
Question
State two reasons for supposing that brass is a mixture and not a compound.
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Answer

Brass is a mixture because:
  1. It shows the properties of its constituents, copper and zinc.
  2. It has a variable composition.

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