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Is Matter Around Us Pure — Science STD 9 — Question

Gujarat BoardEnglish MediumSTD 9ScienceIs Matter Around Us Pure1 Mark
MCQ
Which flow chart correctly describes a homogeneous material?
  • A
    Unknown$-$density$-$three layers.
  • B
    Unknown$-$filtration$-$two substances.
  • C
    Unknown$-$magnet$-$two substances.
  • ✓
    Unknown$-$boiling$-$one temperature.
✓

Answer

Correct option: D.
Unknown$-$boiling$-$one temperature.
To identify the nature of a mixture, consider its sample size. If you can see more than one phase of matter or different regions in the sample, it is heterogeneous. Ifthe composition of the mixture appears uniform no matter where you sample it, the mixture is homogeneous.

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