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Would you be able to check if water is h...

Would you be able to check if water is hard by using a detergent?

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No, it is not possible because detergents give lather with both soft and hard waters.
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Soaps are the detergents used since long. Soaps used for cleansing purpose are sodium or potassium salts of long chain fatty acids such as stearic acid, palmitic acid. These cannot be used with hard water. Synthetic detergents are cleansing agents which have all the properties of soap but which actually do not contain any soap. These can be used both in soft water and hard water as they give foam even in hard water. Which is not true for a detergent molecule ?

Soaps are the detergents used since long. Soaps used for cleansing purpose are sodium or potassium salts of long chain fatty acids such as stearic acid, palmitic acid. These cannot be used with hard water. Synthetic detergents are cleansing agents which have all the properties of soap but which actually do not contain any soap. These can be used both in soft water and hard water as they give foam even in hard water. Which of the following is called invert soap?

DINESH PUBLICATION-CARBON AND ITS COMPOUNDS-Very Short Answer Question
  1. What is the role of soap in cleansing of clothes?

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  2. Which organic compound is added to make ethanol unfit for drinking pur...

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  3. Would you be able to check if water is hard by using a detergent?

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  4. When do you get yellow soot in the burner flame?

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  5. Write IUPAC and common names of CH(3)COCH(3),C(2)H(5)COOH.

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  6. Which of the following belong to the same homologous series? C(3)H(8...

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  7. Which of the following compounds can have a triple bond? C(2)H(4),C(...

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  8. The molecular formula of butane is C(4)H(10). What is the formula of b...

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  9. A compound with molecular formula C(2)H(6)O is used as a fuel. Identif...

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  10. What is common in the structures of the compounds methonal and ethanol...

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  11. Which functional group are present in the family of (i) alcohols (ii) ...

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  12. Identify from thhe following the hydrocarbons that undergo addition re...

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  13. Which element exhibits the property of catenation to maximum and why?

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  14. Select the saturated hydrocarbons from the following C(3)H(6),C(5)H(...

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  15. Write the molecular formula of the first two members of the homologous...

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  16. Name the functional group present in the compound CH(3)CH(2)CH(2)COOH.

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  17. Write the next higher homologue of the following: (i) C(3)H(6) (ii...

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  18. Name the simplest ketone.

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  19. Write full form of CFC.

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  20. Write the structure of ethyl alcohol (C(2)H(5)OH).

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