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Four students prepared mixtures in water by taking sugar, sand, chalk powder and starch, respectively, in four different test tubes. After stirring, the mixture that appeared clear and transparent was that of :
- a)starch and water
- b)chalk powder and water
- c)sand and water
- d)sugar and water
Correct answer is option 'A'. Can you explain this answer?
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Verified Answer
Four students prepared mixtures in water by taking sugar, sand, chalk...
- Collect samples of sugar, salt, chalk powder and sand.
- Take four beakers.
- Fill each one of them about two-third with water.
- Add a teaspoonful of sugar to the first beaker, salt to the second, chalk powder to the third and sand to the fourth.
- Stir the contents of each beaker with a spoon/stirrer.
- Wait for a few minutes and observe what happens to the substances added to the water.
Most Upvoted Answer
Four students prepared mixtures in water by taking sugar, sand, chalk...
Answer:
Explanation:
To determine which mixture appears clear and transparent, we need to consider the properties of each substance and how they interact with water.
Properties of the Substances:
1. Sugar: Sugar is soluble in water, meaning it can dissolve in water and form a homogeneous mixture.
2. Sand: Sand is insoluble in water, meaning it does not dissolve in water and forms a heterogeneous mixture.
3. Chalk Powder: Chalk powder is insoluble in water and forms a heterogeneous mixture.
4. Starch: Starch is insoluble in water and forms a heterogeneous mixture.
Interaction with Water:
1. Sugar: When sugar is mixed with water and stirred, it dissolves completely, forming a clear and transparent solution. This is because sugar molecules are polar, and water molecules are also polar. They attract each other, leading to the dissolution of sugar in water.
2. Sand: When sand is mixed with water and stirred, it does not dissolve. Instead, it forms a suspension where the sand particles are suspended in the water. This results in a cloudy mixture, not clear and transparent.
3. Chalk Powder: When chalk powder is mixed with water and stirred, it does not dissolve. It also forms a suspension, similar to sand, resulting in a cloudy mixture.
4. Starch: When starch is mixed with water and stirred, it forms a suspension as well. The starch particles do not dissolve, leading to a cloudy mixture.
Conclusion:
Based on the properties and interaction with water, the mixture that appears clear and transparent is the one made with starch and water (option A). The mixtures with sugar, sand, and chalk powder will form cloudy mixtures because they do not dissolve completely in water.
Explanation:
To determine which mixture appears clear and transparent, we need to consider the properties of each substance and how they interact with water.
Properties of the Substances:
1. Sugar: Sugar is soluble in water, meaning it can dissolve in water and form a homogeneous mixture.
2. Sand: Sand is insoluble in water, meaning it does not dissolve in water and forms a heterogeneous mixture.
3. Chalk Powder: Chalk powder is insoluble in water and forms a heterogeneous mixture.
4. Starch: Starch is insoluble in water and forms a heterogeneous mixture.
Interaction with Water:
1. Sugar: When sugar is mixed with water and stirred, it dissolves completely, forming a clear and transparent solution. This is because sugar molecules are polar, and water molecules are also polar. They attract each other, leading to the dissolution of sugar in water.
2. Sand: When sand is mixed with water and stirred, it does not dissolve. Instead, it forms a suspension where the sand particles are suspended in the water. This results in a cloudy mixture, not clear and transparent.
3. Chalk Powder: When chalk powder is mixed with water and stirred, it does not dissolve. It also forms a suspension, similar to sand, resulting in a cloudy mixture.
4. Starch: When starch is mixed with water and stirred, it forms a suspension as well. The starch particles do not dissolve, leading to a cloudy mixture.
Conclusion:
Based on the properties and interaction with water, the mixture that appears clear and transparent is the one made with starch and water (option A). The mixtures with sugar, sand, and chalk powder will form cloudy mixtures because they do not dissolve completely in water.
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Four students prepared mixtures in water by taking sugar, sand, chalk powder and starch, respectively, in four different test tubes. After stirring, the mixture that appeared clear and transparent was that of :a)starch and waterb)chalk powder and waterc)sand and waterd)sugar and waterCorrect answer is option 'A'. Can you explain this answer?
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