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Classify the following as prue substance...

Classify the following as prue substance, homogeneous mixture, heterogeneous mixture, element and compound:
(i) Milk,
(ii) Air,
(iii) Petrol
(iv) distilled water
(v) Common
salt (vi) graphite
(vii) Tap-water
(viii) Smoke
(ix) Dry ice
(x) Cold drinks (xi) gun powder.

Text Solution

Verified by Experts

(i) Mixture (homogeneous), (ii) Mixuture (homogenous), (iii) Mixture (homogenous), (iv) compound, (v) mixture (heterogeneous), (vi) element, (vii) mixture (homogeneous), (viii) mixture (heterogeneous), (ix) compound,
(x) mixture (homogeneous), (xi) mixture (heterogeneous).
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CHHAYA PUBLICATION-SOME BASIC CONCEPTS OF CHEMISTRY-WARM UP EXERCISE
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  2. How will you separate the constituents of a sample of gun powder?

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  3. How will you separate the components from a mixture of common salt and...

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  4. Explain why is air sometimes considered as a heterogeneous mixture.

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  5. State whetehr a mixture or a compound is formed when conc. H(2)SO(4) i...

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  6. Name two drugs which causes intoxication when consumed.

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  7. How many significant figures are there in each of following number: (i...

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  8. Expres the following up to three significant figures: (i) 4.309251 (...

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  9. Is it correct to consider the law of conservation of mass as the law o...

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  10. Mention the limitations of the law of conservation of mass.

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  11. Mention the limitations of the law of constant proportions.

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  12. On heating of 4.9g of KClO(3),1.92g" of "O(2) is evolved and 2.97g of ...

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  13. Is the converse of the law of definite proportions always correct? Exp...

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  14. State gay-lussac's law of gaseous volumes.

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  15. 10.1g of HCl is mixed with 6.3g of NaHCO(3). Calculate the mass of CO(...

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  16. According to Dalton's theory, 'during chemical combination, atoms of d...

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  17. Define an atom in view of Dalton's atomic theory.

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  18. Which postulate of Dalton's atomic theory is more or less valid even t...

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  19. Mention of limitations of Dalton's atomic theory.

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  20. What are Daltonide compounds and Berthollide compounds?

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