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Is Matter Around Us Pure — Science STD 9 — Question

Gujarat BoardEnglish MediumSTD 9ScienceIs Matter Around Us Pure1 Mark
MCQ
One of the following is a solid foam. This one is:
  • A
    Butter.
  • ✓
    Bread.
  • C
    Shaving cream.
  • D
    Ruby.
✓

Answer

Correct option: B.
Bread.
Solid foam is a colloid in which a gas is dispersed in a solid medium. Bread is an example of solid foam.

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