Home
Class 12
CHEMISTRY
Permanent hardness can be removed by boi...

Permanent hardness can be removed by boiling water with washing soda.

A

`Cl_(2)`

B

`Na_(2)CO_(3)`

C

`CaOCl_(2)`

D

`K_(2)CO_(3)`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • CHEMISTRY AT A GLANCE

    ALLEN|Exercise ORGANIC CHEMISTRY|472 Videos

  • CHEMISTRY AT A GLANCE

    ALLEN|Exercise ORGANIC CHEMISTRY|472 Videos

  • Chemical Equilibrium

    ALLEN|Exercise All Questions|30 Videos

  • ELECTROCHEMISTRY

    ALLEN|Exercise EXERCISE -05 [B]|38 Videos

Similar Questions

Explore conceptually related problems

Permanent hardness can be removed by adding

Assertion : Permanent hardness of water can be removed by using washing soda. Reason : Washing soda reacts with soluble calcium and magnesium chlorides and sulphates in hard water to form insoluble carbonates.

Assertion (A) Permanent hardness of water is removed by treatment with washing soda. Reson (R) Washing soda reacts with soluble magnesium and calcium sulphate to from insolube carbonates.

Give balanced equations to show how - Permanent hardness in water can be removed by addition of washing soda

Permanent hardness of water cannot be removed by boiling. Why?

Assertion : Temporary hardness can be removed by boiling. Reason : On boiling the soluble bicarbonates change to carbonates which being insoluble, get precipitated.

Hardness of water cannot be removed by

Hardness of water cannot be removed by

Temparary hardness may be removed from water adding.

Temporary hardness may be removed from water adding.

ALLEN-CHEMISTRY AT A GLANCE-INORGANIC CHEMISTRY
  1. Which cannot be oxidised by H(2)O(2) ?

    Text Solution

    |

  2. Which one of the following reactions represent the oxidising properly ...

    Text Solution

    |

  3. Permanent hardness can be removed by boiling water with washing soda.

    Text Solution

    |

  4. Calgon used as a water softner is

    Text Solution

    |

  5. Which is not present in clear hard water

    Text Solution

    |

  6. What is formed when chloroform reacts with heavy water?

    Text Solution

    |

  7. The correct IUPAC name of [Pt(NH(3))(2)Cl(4)] is

    Text Solution

    |

  8. When 1 mole of CrCl(3). 6H(2)O is treated with excess of AgNO(3) 3 mol...

    Text Solution

    |

  9. Indicate the complex ion which shows geometrical isomerism .

    Text Solution

    |

  10. Which of the following options are correct for [Fe(CN)(6)]^(3-) comple...

    Text Solution

    |

  11. Which of the following complexes formed by Cu^(2+) ions is most stable...

    Text Solution

    |

  12. The compounds [Co(SO(4))(NH(3))(5)]Br and [Co(SO(4)) (NH(3))(5)]Cl rep...

    Text Solution

    |

  13. Which of the following species is not expected to be a ligand ?

    Text Solution

    |

  14. Which complex is optically active ?

    Text Solution

    |

  15. Geometrical shapes of the complexes formed by the reaction of Ni^(2+) ...

    Text Solution

    |

  16. How many EDTA (ethylenediaminetetraacetate) unit(s) are required to ma...

    Text Solution

    |

  17. For the given complex [CoCl(2)(en)(N(3))(2)]^(+), the number of geomet...

    Text Solution

    |

  18. The value of effective atomic number of Ni in [Ni(CO(4))] is

    Text Solution

    |

  19. A complex has a composition corresponding to the formula CoBr(2)Cl.4NH...

    Text Solution

    |

  20. How many ions are produced from the complex Co(NH3)6Cl2 in solution? (...

    Text Solution

    |