Which one among the following is not a mixture?; 1) Graphite; 2) Steel; 3) Glass; 4) Brass
Answers
Answer: Graphite.
Explanation:
Graphite is not a mixture. It is a natural form of crystalline carbon. It is a indigenous mineral found in metamorphic and igneous rocks.
Steel is an alloy of various elements like iron ,carbon, and other elements.
Glass is a transparent non-crystalline amorphous solid. The most common glass is produced through the composition of different substances like bleaching powder, silica, calcium oxide( lime), oxides of alkaline metals etc.
Brass is an alloy of zinc and copper.
Hope this helps.
Answer:
Graphite is not a mixture.
Explanation:
This is because graphite is a pure element which cannot split into its constituent particles. It is an isotope of carbon. Graphite is one of the five known allotropes of carbon, graphite, diamond, fullerene, grapheme and amorphous carbon.
Graphite is made of sheets of carbon bonded together in hexagonal cells. Graphite is a crystalline form of the element carbon. Graphite is used in pencils and lubricants.