Home
Class 10
CHEMISTRY
Explain why it is difficult to wash clot...

Explain why it is difficult to wash clothes with soap when water is hard. How do detergents help in overcoming this problem?

Text Solution

Verified by Experts

In hard water, soap reacts with calcium and magnesium salts which are present in hard water and form insoluble substances called scum.
Detergents are ammonium or sulphonate salts of long chain carboxylie acids. The charged end of these compounds do not form insoluble precipitates with caleium and magnesium ions in hard water.
Promotional Banner

Topper's Solved these Questions

  • CARBON AND ITS COMPOUNDS

    OSWAAL PUBLICATION|Exercise Topic II- Carbon Compounds , Soap and Detergents (Long Answer Type Questions)|15 Videos

  • CARBON AND ITS COMPOUNDS

    OSWAAL PUBLICATION|Exercise NCERT Corner (Intext Questions)|13 Videos

  • CARBON AND ITS COMPOUNDS

    OSWAAL PUBLICATION|Exercise Topic II- Carbon Compounds , Soap and Detergents (Short Answer Type Question-I)|11 Videos

  • ACIDS,BASES AND SALTS

    OSWAAL PUBLICATION|Exercise NCERT CORNER TEXTBOOK EXERCISES|15 Videos

  • CHEMICAL REACTIONS AND EQUATIONS

    OSWAAL PUBLICATION|Exercise NCERT CORNER (Textbook Exercises)|20 Videos

Similar Questions

Explore conceptually related problems

Why soaps do not work in hard water ?

Why hard water does not form lather with soap ? What advantage has soap over detergents ?

Explain the formation of scum when hard water is treated with soap

Explain the formation of scum when hard water is treated with soap.

Why do calcium ions make water hard but sodium do not

Explain why Water with detergent disolved in it should have small angles of contact.

Explain with the help of a circuit diagram, how the thickness of depletion layer in a p-n jucntion diode changes when it is forward biased?

Why do detergents remain effective for washing clothes whereas with soaps foam is formed with difficulty?

OSWAAL PUBLICATION-CARBON AND ITS COMPOUNDS-Topic II- Carbon Compounds , Soap and Detergents (Short Answer Type Question-II)
  1. Draw the electron dot structure of ethyne and also draw its structural...

    Text Solution

    |

  2. (i) Differentiate between alkanes and alkenes. Name and draw the struc...

    Text Solution

    |

  3. Explain why it is difficult to wash clothes with soap when water is ha...

    Text Solution

    |

  4. The structural formula of an ester is : Write the structural form...

    Text Solution

    |

  5. Write three different chemical reactions showing the conversion of eth...

    Text Solution

    |

  6. When ethanol reacts with ethanoic acid in the presence of conc. H(2)SO...

    Text Solution

    |

  7. Name the compound formed where ethanol is heated is excess of concentr...

    Text Solution

    |

  8. Write the name and molecular formula of an organic compound having its...

    Text Solution

    |

  9. An organic compound 'P' is a constituent of wine. 'P' on reacting with...

    Text Solution

    |

  10. Write chemical equation of the reaction of ethanoic acid with the foll...

    Text Solution

    |

  11. On dropping a small piece of sodium in a test-tube containing carbon c...

    Text Solution

    |

  12. When we take 1 ml ethanol and 1 ml ethanoic acid along with a few drop...

    Text Solution

    |

  13. With the help of an example, explain the process of hydrogenation. Men...

    Text Solution

    |

  14. What is the difference between the molecules of soaps and detergents, ...

    Text Solution

    |

  15. Write the name and structural formula of the compound formed when etha...

    Text Solution

    |

  16. What are esters ? How they are prepared ? List two uses of esters.

    Text Solution

    |

  17. Draw the electron dot structure of ethyne. A mixture of ethyne and ony...

    Text Solution

    |

  18. Write the chemical equations for the following chemical reactions and ...

    Text Solution

    |

  19. Name the oxidising agents used for the conversion of ethanol to ethano...

    Text Solution

    |

  20. Complete the following equations : (i) CH(3)COOC(2)H(5)overset(NaOH)...

    Text Solution

    |