Advertisements
Advertisements
प्रश्न
Give a reason why on opening a bottle of soda [carbon dioxide dissolved in water] the gas escapes out with a ‘fizz’.
उत्तर
Solubility of gases in liquid decreases on decreasing the pressure and CO2 come out of water with a ‘fizz’ when pressure decreases on opening the bottle.
APPEARS IN
संबंधित प्रश्न
How do the solubility of a solid and a gas affected by Increase in pressure.
Differentiate between Suspension and colloid.
Give two example of Colloid.
How are sol, solution and suspension different from each other?
Explain the term of Solute.
Explain how the following factor affects the formation of a solution is proportion of the solute & the solvent.
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.
Draw a table to differentiate – True solutions, colloidal solutions & suspensions – with respect to
- Type of mixture
- 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’.
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
