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सी.आई.एस.सी.ई.आयसीएसई ICSE Class 8

Give Reason for the Following: Colloidal Solutions Exhibit Brownian Movement. - Chemistry

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प्रश्न

Give reason for the following:

Colloidal solutions exhibit brownian movement.

एका वाक्यात उत्तर
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उत्तर

Particles in colloidal solutions do not settle down and are always in motion.

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पाठ 8: Water - Objective Type Questions

संबंधित प्रश्‍न

Explain the term of solution.


Differentiate between Suspension and colloid.


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


Define the term ‘solubility ’ of a solute in water. If 10 g. of a solute is added to 100 g. of water at 50°C and stirred, it is seen that the total solute dissolves at that temperature giving an unsaturated solution. Is 10 g, the solubility of the solute in water. Give reasons.


Give a reason why on opening a bottle of soda [carbon dioxide dissolved in water] the gas escapes out with a ‘fizz’.


Draw a table to differentiate – True solutions, colloidal solutions & suspensions – with respect to

  1. Type of mixture
  2. Solute particles in the mixture.

Give four examples of each of the above types of solutions i.e. true solution, colloidal solution & suspension. Give a reason why a true solution does not exhibit ‘Tyndall effect’.


Complete the statement by filling the blank with the correct word from the option.

Solubility of a solute is the _______ amount of solute that will saturate 100 g. of water at t°C.


Two substances, A and B were made to react to form a third substance, A2B according to the following reaction

\[\ce{2A + B -> A2 B}\]

Which of the following statements concerning this reaction are incorrect?

(i) The product A2B shows the properties of substances A and B

(ii) The product will always have a fixed composition

(iii) The product so formed cannot be classified as a compound

(iv) The product so formed is an element


Take an earthen pot (mutka), some pebbles and sand. Design a small-scale filtration plant that you could use to clean muddy water.


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