NCERT Solutions for Class 9 Science Chapter 2
Is Matter Around Us Pure
NCERT Books for Session 2022-2023
CBSE Board and UP Board
Exercises Questions
Page No-29
Questions No- 10
Classify the following into elements, compounds and mixtures. Sodium, Soil, Sugar solution, Silver, Calcium carbonate, Tin, Silicon, Coal, Air, Soap, Methane, Carbon dioxide, Blood.
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Elements – sodium, silver, tin, silicon.
Compounds – calcium carbonate, methane, carbon dioxide.
Mixtures – soil, sugar solution, coal, air, soap, blood.
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Elements – Compounds – Mixtures
Sodium – Calcium carbonate – Sugar solution
Silver – Methane – Soil
Tin – Carbon dioxide – Coal
Silicon – Soap – Air ,Blood
1. Elements:
– Sodium (Na)
– Silver (Ag)
– Tin (Sn)
– Silicon (Si)
2. Compounds:
– Calcium carbonate (CaCO3)
– Methane (CH4)
– Carbon dioxide (CO2)
3. Mixtures:
– Homogeneous Mixtures:
– Sugar solution: A homogeneous mixture of sugar dissolved in water.
– Air: A homogeneous mixture of gases, including nitrogen, oxygen, carbon dioxide, and others.
– Heterogeneous Mixtures:
– Soil: A heterogeneous mixture of minerals, organic matter, water, and air.
– Coal: A heterogeneous mixture of organic matter, minerals, and other components.
– Soap: A mixture of various compounds and ingredients.
– Blood: A complex mixture of cells, proteins, water, and other substances.