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Is Matter Around Us Pure — Science STD 9 — Question

Gujarat BoardEnglish MediumSTD 9ScienceIs Matter Around Us Pure5 Marks
Question
List five characteristics by which compounds can be distinguished from mixtures.
✓

Answer

 
MIXTURES
 
COMPOUNDS
$i$
A mixture can be separated into constituents by the physical processes.
$i$
A compound cannot be separatwd into its constituents by the physical processes.
$ii$
A mixture shows the properties its contituents.
$ii$
The properties of a compound are entirely different from those of its constituents.
$iii$
Energy is usually neither given out nor absorbed in the preparation of a mixture.
$iii$
Energy is usually given or absorbed during the preparation of a compound.
$iv$
The composition of a mixture is variable.
$iv$
The composition of a compound is fixed.
$v$
A mixture does not have a fixed melting point, boiling point, etc.
$v$
A compound has a fixed melting boiling point etc.

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