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प्रश्न
Write the steps you would use for making tea. Use the words: solution, solvent, solute, dissolve, soluble, insoluble, filtrate and residue.
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उत्तर
To make tea, we will use the following steps:
- Take 100 mL of water, which will serve as the solvent.
- Boil water on a gas stove.
- Add one teaspoon of sugar, which acts as a solute.
- Sugar is soluble in water, therefore it dissolves in water and forms a solution.
- Now add roughly half a teaspoon of tea leaves that are insoluble in water.
- Boil the contents for 4 to 5 minutes, then add a half cup of milk and continue to boil for 2-3 minutes.
- Filter the tea using a sieve.
- Tea leaves will be left as residue, and tea will be extracted as filtrate.
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संबंधित प्रश्न
Pragya tested the solubility of three different substances at different temperatures and collected the data as given below (results are given in the following table, as grams of substance dissolved in 100 grams of water to form a saturated solution).
| Substance dissolved | Temperature in K | ||||
| 283 | 293 | 313 | 333 | 353 | |
| Solubility | |||||
| Potassium nitrate | 21 | 32 | 62 | 106 | 167 |
| Sodium chloride | 36 | 36 | 36 | 37 | 37 |
| Potassium chloride | 35 | 35 | 40 | 46 | 54 |
| Ammonium chloride | 24 | 37 | 41 | 55 | 66 |
- What mass of potassium nitrate would be needed to produce a saturated solution of potassium nitrate in 50 grams of water at 313 K?
- Pragya makes a saturated solution of potassium chloride in water at 353 K and leaves the solution to cool at room temperature. What would she observe as the solution cools? Explain.
- Find the solubility of each salt at 293 K. What salt has the highest solubility at this temperature?
- What is the effect of change of temperature on the solubility of a salt?
Explain the following giving an example.
Saturated solution
The number of components in a binary solution is ______
The component present in a lesser amount, in a solution, is called ______
Give an example of gas in gas.
Smoke and fog both are aerosols. In what way are they different?
The teacher instructed three students ‘A’, ‘B’ and ‘C’ respectively to prepare a 50% (mass by volume) solution of sodium hydroxide (NaOH). ‘A’ dissolved 50g of NaOH in 100 mL of water, ‘B’ dissolved 50g of NaOH in 100g of water while ‘C’ dissolved 50g of NaOH in water to make 100 mL of solution. Which one of them has made the desired solution and why?
Name the process associated with the following
A potassium permanganate crystal is in a beaker and water is poured into the beaker with stirring.
______ is the major difference between true solutions, suspensions, and colloids.
What is the solvent?
