Identify solute and solvent in the following solutions :
(i) Aerated drinks
(ii) Tincture of iodine
(iii) Lemon water

State the principle of each of the following methods of separation of mixtures.
(i) Centrifugation method
(ii) Separation using separating funnel

[5 MARKS]

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Solution

Identification : 0.5 Mark each
Principle : 1 Mark each

Identification
(i) Aerated drinks: Solute = Carbon Dioxide, Solvent = Water
(ii) Tincture of iodine: Solute = Iodine, Solvent = Alcohol
(iii) Lemon water: Solute = Sugar, Citric Acid, Solvent = Water

Principle
(i) Centrifugation Principle: The denser particles are forced to the bottom and the lighter particles stay at the top when spun rapidly.
(ii) Separation using separating funnel: Immiscible liquids separate out in layers depending on their densities.

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Similar questions

(a) Explain the terms:
(i) Solution
(ii) Solute
(iii) Solvent

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(i) Aerated drinks
(ii) Tincture of iodine
(iii) Lemon water

Write the principle and applications of the following methods of separation:

(a) Separating funnel

(b) Centrifugation

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(ii) water and acetone mixture
(Give reasons for your answer.

Which method is better for recovering sugar from sugar solution: evaporation or crystallisation? Give reason for your answer.

Q. State the principal used in separating different components of mixture by the method of centrifugation.

Q. Write answer to the following question in your own words.

(a) How are the components of mixtures separated by simple methods ?
(b) Which elements ( metals and non-metals), compounds and mixtures do we use in our day-to-day life?
(c) In everyday life, where and for what purpose do we use centrifugation?
(d) Where are the methods of separation by distillation and by separating funnel used ? Why ?
(e) Which precaution will you take while using the methods of distillation and separation by separating funnel ?

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Identify solute and solvent in the following solutions : (i) Aerated drinks (ii) Tincture of iodine (iii) Lemon water State the principle of each of the following methods of separation of mixtures. (i) Centrifugation method (ii) Separation using separating funnel [5 MARKS]

Identify solute and solvent in the following solutions :
(i) Aerated drinks
(ii) Tincture of iodine
(iii) Lemon water

State the principle of each of the following methods of separation of mixtures.
(i) Centrifugation method
(ii) Separation using separating funnel

[5 MARKS]