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प्रश्न
Colloids have the particle size range between
पर्याय
10-7 to 10-10 m
10-10 to 10-12 m
10-7 to 10-5 m
10-12 to 10-15 m
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उत्तर
10-7 to 10-10 m
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संबंधित प्रश्न
Explain the term of solution.
Give two example of Colloid.
Explain the term of Solute.
Explain how the following factor affects the formation of a solution is particle size of the solute.
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’.
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’.
Select the correct answer of the following statement:
A heterogenous mixture of undissolved particles in dispersion medium, visible to the naked eye.
Give reason for the following:
All solutions are homogenous mixtures of a solute in a solvent.
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
