How can a stain be identified?
- By Colour and Shape
- By Shape and Smell
- By Colour and Smell
- By Taste and Shape
The Correct Option is C
Solution and Explanation
Stains can often be identified by their color and smell. For example, food stains like ketchup or curry have distinct colors and smells that can help determine their source. The combination of color and odor is often a key indicator in identifying stains.
Top Questions on Stain Removal Techniques
- List any three precautions which should be taken while removing stains.
- CBSE Class X - 2024
- Home Science
- Stain Removal Techniques
- What is meant by a stain? Name the five categories of stains.
- CBSE Class X - 2024
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- Which two reagents can be used to remove a ballpoint pen stain on a white cotton school uniform of a child?
- CBSE Class X - 2024
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- Name two reagents you will use to remove tea stains on a white cotton tablecloth.
- CBSE Class X - 2024
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- Arrange the following steps of removing any unknown stain in a proper sequence:
(i) Soak the stain in cold water.
(ii) Expose the stain to sunlight.
(iii) Remove the stain when fresh.
(iv) Soak the stain in warm soapy water.
Choose the correct option from the following:- CBSE Class X - 2024
- Home Science
- Stain Removal Techniques
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Use the table above to answer the following questions about metals A, B, C, and D:
(i) Which is the least reactive metal?
(ii) What would be observed if C is added to a solution of copper sulphate?
(iii) Arrange the metals A, B, C, and D in the order of their decreasing reactivity.- CBSE Class X - 2025
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