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Question

Classify the following materials as homogeneous and heterogeneous mixtures.
(soda-water, wood, air, soil, petrol and water mixture, alcohol and water mixture, chalk and water mixture, sand and water mixture, sugar and water mixture, pumice stone, smoke, salt and water mixture, cough syrup, gun powder).

Solution
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Homogeneous soda-water, wood, air, alcohol and water mixture, sugar and water mixture, salt and water mixture, cough syrup.
Heterogeneous soil, petrol and water mixture, chalk and water mixture, sand and water mixture, pumice stone, smoke, gun powder.

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Similar Questions
Q1
Classify the following materials as homogeneous and heterogeneous mixtures.
(soda-water, wood, air, soil, petrol and water mixture, alcohol and water mixture, chalk and water mixture, sand and water mixture, sugar and water mixture, pumice stone, smoke, salt and water mixture, cough syrup, gun powder).
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Q2

(a) State the main points of difference between homogeneous and heterogeneous mixtures.

(b) Classify the following materials as homogeneous mixtures and heterogeneous mixtures :

Soda-water, Wood, Air, Soil, Vinegar, Alcohol and water mixture, Petrol and water mixture, Chalk and water mixture, Sugar and water mixture, Copper sulphate solution.
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Q3
Which one of the following is most likely to exhibit Tyndall effect ?
(a) sugar and water mixture
(b) potash alum and water mixture
(c) chalk powder and water mixture
(d) potassium permanganate and water mixture
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Q4
A true solution is a homogeneous mixture of solute and solvent. Chalk powder in water is a heterogeneous mixture. Hence chalk powder is not a true solution.
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Q5

Which of the following is not an example of heterogeneous mixture?

A. Oil in Water

B. Salt in water

C. Gun Powder

D. Mixture of Sulphur Powder and Iron Fillings


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