Class 7 Science MCQs - Chapter 15
Mixtures Quiz Questions & Answers PDF Download - 3
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Mixtures Exam Questions and Answers PDF Download: Test 3
Constituents of an element can be separated through
- experiment
- physical processes
- physical method
- physical means
A process in which liquid changes into vapor or gas by boiling, is called
- distillation
- filtration
- evaporation
- fractional distillation
A technique which is used to separate and identify the different constituents of mixture is called
- paper chromatography
- color chromatography
- dye chromatography
- chemical chromatography
Air is a mixture of
- elements
- compounds
- gases
- molecules
A separation technique which uses fractionating column to separate different liquid components in a mixture with different boiling points by heating the mixture is called
- fractional distillation
- filtration
- evaporation
- distillation
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