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Which of the following materials fall in...

Which of the following materials fall in the category of a pure substance ?
(a) Ice
(b) Milk
(c ) Iron
(d) Hydrochloric acid
(e ) Calcium oxide
(f) Mercury
(g) Brick
(h) Wood
(i) Air.

Text Solution

Verified by Experts

Pure substances are: Ice, Calcium oxide and Mercury.
(Note. Hydrochloride acid is a mixture of hydrogen chloride gas and water, so it is not a pure substance).
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LAKHMIR SINGH & MANJIT KAUR-IS MATTER AROUND US PURE -Exercise
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  2. List the points of differences between homogeneous and heterogenous mi...

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  3. Differentiate between homogeneous and heterogeneous mixtures with exam...

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  4. How are sol, solution and suspension different from each other ?

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  5. To make a saturated solution, 36 g of sodium chloride is dissolved in ...

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  6. How will you separate a mixture containing kerosene and petrol (differ...

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  7. What type of mixtures are separted by the technique of craystallisatio...

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  8. Classify the following as chemical or physical changes : ** cutting ...

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  9. Try segregating the things around you as pure substances or mixtures.

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  10. Which separation techniques will you apply for the separation of the f...

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  11. Write the steps you would use for making tea. Use the words solution, ...

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  12. Pargya tested the solubility of four different substances at different...

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  13. Explain the following given examples: {:((a),"saturated solution",(b...

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  14. Classify each of the following as a homogeneous or hetergeneous mixtur...

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  15. How would you confirm that a colourless liquid given to you is pu...

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  16. Which of the following materials fall in the category of a pure substa...

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  17. Identify the solutions among the following mixtures. (a) Soil (b) ...

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  18. Which of the following will show "Tyndall effect "? (a) Salt solutio...

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  19. Classify the following into elements, compounds and mixtures. (a) So...

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  20. Which of the following are chemical changes ? (a) Growth of a plant ...

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