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Why do soaps not work in hard water?...

Why do soaps not work in hard water?

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Why soaps are not used in hard water?

What do you understand by hard water?what is temporary and permanent hardness?explain ion exchange and synthetic resin method of removing permanent hardness.

It is better to use detergent than soap in hard water - explain why.

Why are ethers not soluble in water ?

Addition of soaps or detergents to water decreases the surface tension of water-why?

A sample of water containing KCL does not behave as hard water, but a sample of water containing CaC l_(2) behaves as hard water-why?

A sample of water containing KCL does not behave as hard water, but a sample of water containing CaC l_(2) and MgCl_(2) behaves as hard water - why ?

What do you understand by the term softening of hard water?

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CHHAYA PUBLICATION-CHEMISTRY IN EVERYDAY LIFE -NCERT EXERCISE QUESTIONS
  1. How do antiseptics differ from disinfectants ? Give one example of eac...

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  2. Why are cimetidine and ranitidine better antacids than sodium hydrogen...

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  3. Name a substance which can be used as an antiseptic as well as disinfe...

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  4. What arethe main constituents of dettol ?

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  5. What is tincture of iodine? What is its use?

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  6. What are food preservatives ?

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  7. Why is use of aspartame limited to cold foods and drinks?

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  8. What are artificial sweetening agents? Give two examples.

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  9. Name the sweetening agent used in the preparation of sweets for a dia...

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  10. What problem arises in using alitarne as artificial sweetener?

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  11. How are synthetic detergents better than soaps?

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  12. Explain the following terms with suitable examples: (1)cationic deterg...

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  13. What are biodegradable and non-biodegradable detergents? Give one exam...

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  14. Why do soaps not work in hard water?

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  15. Can you use soaps and synthetic detergents to check the hardness of w...

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  16. Explain the cleansing action of soaps.

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  17. Label the hydrophilic and hydrophobic parts of CH3(CH2)10CH2OSO3^(ѳ)N...

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  18. Label the hydrophilic and hydrophobic parts of CH3(CH2)15overset(o+)N...

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  19. Label the hydrophilic and hydrophobic parts of CH3(CH2)16COO(CH2CH2O)...

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  20. If water contains dissolved calcium hydrogencarbonate, out of soaps an...

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