Home
Class 11
CHEMISTRY
If excess of Ca(OH)2 is added to hard w...

If excess of `Ca(OH)_2` is added to hard water in Clark's method

A

Temporary hardness is not removed

B

Permanent hardness is removed

C

Temporary hardness occurs

D

Permanent hardness occurs

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • HYDROGEN AND ITS COMPOUNDS

    AAKASH SERIES|Exercise OBJECTIVE EXERCISE - 3|48 Videos

  • HYDROGEN AND ITS COMPOUNDS

    AAKASH SERIES|Exercise EXERCISE ON PASSAGE|14 Videos

  • HYDROGEN AND ITS COMPOUNDS

    AAKASH SERIES|Exercise OBJECTIVE EXERCISE - 2A (HYDROGEN PEROXIDE)|31 Videos

  • HYDROCARBONS

    AAKASH SERIES|Exercise ADDITIONAL PRACTICE SHEET ( LEVEL-II (PRACTICE SHEET (ADVANCED) (MATRIX MATCHING TYPE QUESTIONS)))|5 Videos

  • IONIC EQUILIBRIUM

    AAKASH SERIES|Exercise ADDITIONAL PRACTICE EXERCISE (LEVEL -II PRACTICE SHEET (ADVANCED) (Integer Type Questions))|8 Videos

Similar Questions

Explore conceptually related problems

A hard water sample contains magnesium bicarbonate only. 100 ml of the hard water sample requires 10 ml. of standard soap solution (1 ml soap solution = 1 mg CaCO_3 ) to get good lather. Find out of the weight of Ca(OH_2) to be added to 10 Kg water sample to make it soft water.

Permanent hardness of water is due to

Hard water is one which

How is hardness of water estimated ?

Explain the disadvantages of hard water.

What is the cause of hardness of water ?

Why the use of hard water is disadvantages?

Degree of hardness of a water sample is 100ppm. If that sample contains hardness causing salt Mg(HCO_3)_2 , calculate weight of Ca(OH)_2 required for the treatment of 10kg of water sample.

What is Hard water ? How can you remove hardness of water by Calgon method ?

AAKASH SERIES-HYDROGEN AND ITS COMPOUNDS-OBJECTIVE EXERCISE - 2B
  1. The compound formed when heavy water reacts with Ca3P2 is 'X'. Its mo...

    Text Solution

    |

  2. At 20^@C the electrical conductivity of water is 5.7 xx 10^(-8) ohm^(...

    Text Solution

    |

  3. If excess of Ca(OH)2 is added to hard water in Clark's method

    Text Solution

    |

  4. pH of the water coming out of cation exchange resin

    Text Solution

    |

  5. 12 ml of saturated solution .001gr of CaCO(3) were required in the ti...

    Text Solution

    |

  6. A sample of water contained 30ppm of MgSO4 . Its hardness is

    Text Solution

    |

  7. 100Kg of a sample of water contained 6 g of MgSO4 . The degree of hard...

    Text Solution

    |

  8. The physical constant which is less for water than for heavy water is

    Text Solution

    |

  9. The temperature of heavy water is increased from 4^@C to 14^@C . Then ...

    Text Solution

    |

  10. If 1 kg of water contains 12 mg of magnesium sulphate its degree of ha...

    Text Solution

    |

  11. Assertion (A) : Heavy water is used as moderator in nuclear reactors. ...

    Text Solution

    |

  12. Two samples of water A and B having concentration 16.2 pp m of Ca(HCO...

    Text Solution

    |

  13. O2^(2-) is the symbol of the ion

    Text Solution

    |

  14. H2O2 is obtained by adding dil H2SO4 to

    Text Solution

    |

  15. In the preparation of H2O2 from BaO2 , phosphoric acid is preferred t...

    Text Solution

    |

  16. In auto oxidation preparation of H(2)O(2) the oxidizing agent is

    Text Solution

    |

  17. Destabiliser of hydrogen peroxide is

    Text Solution

    |

  18. In H2O2 the degree of hydrogen bonding is

    Text Solution

    |

  19. 'H(2)O(2)' ---> 2H + O(2) + 2e The above equation represents the follo...

    Text Solution

    |

  20. As an oxidising agent, hydrogen peroxide reacts rapidly in

    Text Solution

    |