Home
Class 12
CHEMISTRY
Polyphosphates are used as water softeni...

Polyphosphates are used as water softening agents because they

A

form soluble complexes with ionic species

B

Precipitate anionic species

C

Forms soluble complexes with cationic species

D

Precipitate cationic species

Text Solution

Verified by Experts

The correct Answer is:
C
Polyphosphates (sodium hexametaphophates, sodium tripolyphosphate or STPP) form soluble complexes with `Ca^(+2) , Mg^(+2)` present in hard water.
Promotional Banner

Topper's Solved these Questions

  • S AND P BLOCK ELEMENTS

    ERRORLESS |Exercise JEE Section (More than one choice correct answer )|40 Videos

  • S AND P BLOCK ELEMENTS

    ERRORLESS |Exercise JEE Section (Reasoning type question )|15 Videos

  • S AND P BLOCK ELEMENTS

    ERRORLESS |Exercise Critical thinking (Objective Questions)|62 Videos

  • Practical Organic Chemistry

    ERRORLESS |Exercise JEE Ssection (More than one choice correct answer)|16 Videos

  • SOLID STATE

    ERRORLESS |Exercise JEE section (Numeric )|1 Videos

Similar Questions

Explore conceptually related problems

Polyphosphates are used for softening agents because they

Calgon used as water softener is

Ca is the good reducing agent, because

Halogens are powerful oxidising agents because

ERRORLESS -S AND P BLOCK ELEMENTS-JEE Section (Only choice correct answer)
  1. The number of P-O-P bonds in cyclic metaphosphoric acid is.

    Text Solution

    |

  2. The number of S-S bonds in sulphur trioxide trimer (S(3)O(9)) is

    Text Solution

    |

  3. Polyphosphates are used as water softening agents because they

    Text Solution

    |

  4. Polyphosphates are used as water softening agents because they

    Text Solution

    |

  5. For H(3)PO(3) and H(3)PO(4) the correct choice is

    Text Solution

    |

  6. H(3)BO(3) is.

    Text Solution

    |

  7. (Me)(2) SiCl(2) on hydrolysis will produce.

    Text Solution

    |

  8. A sodium salt on treatment with MgCl(2) gives white precipitate only o...

    Text Solution

    |

  9. (NH(4))(2)Cr(2)O(7) on heating liberates a gas. The same gas will be ...

    Text Solution

    |

  10. Number of lone pair of electrons in XeF(4) is

    Text Solution

    |

  11. The acid having O - O bond is

    Text Solution

    |

  12. Pb and Sn are extracted from their chief ore by

    Text Solution

    |

  13. Which blue liquid is obtained on reacting equimolar amounts of two gas...

    Text Solution

    |

  14. Which is the most thermodynamically stable allotropic form of phosphor...

    Text Solution

    |

  15. The name of the structure of silicates in which three oxygen atoms of ...

    Text Solution

    |

  16. Which of the following will not be oxidised by O(3)?

    Text Solution

    |

  17. When PbO(2) reacts with conc. HNO(3) the gas evolved is

    Text Solution

    |

  18. B(OH)(3)+NaOH square square square NaBO(2) +Na[B(OH)(4)]+H(2)O How c...

    Text Solution

    |

  19. The species present in solution when CO(2) is dissolved in water

    Text Solution

    |

  20. Argon is used in arc welding because

    Text Solution

    |