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Which separation technique involves manually removing unwanted substances from a mixture?
  • a)
    Winnowing
  • b)
    Handpicking
  • c)
    Sieving
  • d)
    Filtration
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
Which separation technique involves manually removing unwanted substan...
Understanding Handpicking as a Separation Technique
Handpicking is a straightforward and effective method used to separate unwanted substances from a mixture, particularly in scenarios where the components are distinctly visible.

What is Handpicking?
- Handpicking involves physically sorting through a mixture and manually removing unwanted substances or impurities.
- This technique is commonly used in household activities, such as during cooking or preparing food items.

When is Handpicking Used?
- It is most effective for mixtures containing large, easily distinguishable particles.
- Typical examples include separating stones from rice or picking out rotten fruits from a batch.

Advantages of Handpicking
- **Simplicity**: No special tools or equipment are needed, making it accessible to everyone.
- **Precision**: Allows for careful selection, ensuring that only unwanted substances are removed.

Comparison with Other Techniques
- **Winnowing**: This method uses wind to separate lighter particles from heavier ones, primarily used in agriculture.
- **Sieving**: Involves using a mesh or perforated surface to separate particles based on size; not always manual.
- **Filtration**: This technique separates solids from liquids using a barrier, typically more complex than handpicking.

Conclusion
Handpicking stands out among separation techniques due to its manual nature and effectiveness in dealing with visible impurities. For Class 6 students, understanding handpicking as a method offers foundational knowledge about how simple physical techniques can effectively sort materials in everyday life.
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Community Answer
Which separation technique involves manually removing unwanted substan...
Handpicking involves manually removing unwanted substances based on differences in size, color, or shape.
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Which separation technique involves manually removing unwanted substances from a mixture?a)Winnowingb)Handpickingc)Sievingd)FiltrationCorrect answer is option 'B'. Can you explain this answer?
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