Question 2
EasyOriginal questionWhich of these is a pure substance rather than a mixture?
Show the answer and explanation
CorrectNot quiteAnswer B
Correct answer: B
Explanation
A pure substance has one kind of particle throughout and a fixed composition.
Distilled water is only H₂O. Air is a mixture of gases, sea water has dissolved salts, and milk is a mixture of fat, protein and water.
- Concept
- Pure substances and mixtures
- Typical timeTypical
- 35 s
- Your timeYours
- —
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