Home
Class 12
CHEMISTRY
Assertion: In Down's process CaCI(2) and...

Assertion: In Down's process `CaCI_(2)` and `NaF` is added with fused `NaCI`
Reason: `CaCI_(2)` and `NaF` lower down melting point of NaCI

A

If both Assertion & Reason are True & the Reason is a correct explanation of the Assertion

B

If both Assertion & Reason are True but Reason is not a correct explanation of the Assertion

C

If Assertion is True but the Reason is False

D

If both Assertion & Reason are False

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • S-BLOCK ELEMENTS

    ALLEN|Exercise EXERCISE -3|1 Videos

  • S-BLOCK ELEMENTS

    ALLEN|Exercise EXERCISE -2|1 Videos

  • s-Block element

    ALLEN|Exercise All Questions|13 Videos

  • SOLUTIONS

    ALLEN|Exercise EXERCISE -05 [B]|22 Videos

Similar Questions

Explore conceptually related problems

Why do not we use MgCI_(2) instead of CaCI_(2) to lower the melting point of NaCI in the Down's process?

why is melting point of LiCI lower than NaCI ?

In Down's Process, for manufacture of sodium metals, CaCI_(2) is added to NaCI in order to

Assertion : Potassium is not obtained by the electrolysis of fused KCl . Reason : Potassium vapourises at the melting point of KCl .

Sodium metal can be extracted by either Castner's Process or Down's process Castner's process. Electrolyte to fused NaOH Cathode and anode are made up of a steel rod and Ni cylinder respectively the reaction takes place as follows : At cathode Na^(+)+e^(-)toNa At anode OH^(-)to(1)/(2)H_(2)O+(1)/(4)O_(2)uarr+e^(-) Down's process : Electrolyte to fused NaCl and CaCl_(2) Cathode and anode are ring shaped iron metal and graphite respectively. The reaction takes place as follows : Na^(+)+e^(-)toNa Cl^(-)to(1)/(2)Cl_(2)uarr+e^(-) Instead of graphite, nickel anode can't be used in Down's process because

Sodium metal can be extracted by either Castner's Process or Down's process Castner's process. Electrolyte to fused NaOH Cathode and anode are made up of a steel rod and Ni cylinder respectively the reaction takes place as follows : At cathode Na^(+)+e^(-)toNa At anode OH^(-)to(1)/(2)H_(2)O+(1)/(4)O_(2)uarr+e^(-) Down's process : Electrolyte to fused NaCl and CaCl_(2) Cathode and anode are ring shaped iron metal and graphite respectively. The reaction takes place as follows : Na^(+)+e^(-)toNa Cl^(-)to(1)/(2)Cl_(2)uarr+e^(-) In Castner's process some sodium metal us lost due to

Sodium metal can be extracted by either Castner's Process or Down's process Castner's process. Electrolyte to fused NaOH Cathode and anode are made up of a steel rod and Ni cylinder respectively the reaction takes place as follows : At cathode Na^(+)+e^(-)toNa At anode OH^(-)to(1)/(2)H_(2)O+(1)/(4)O_(2)uarr+e^(-) Down's process : Electrolyte to fused NaCl and CaCl_(2) Cathode and anode are ring shaped iron metal and graphite respectively. The reaction takes place as follows : Na^(+)+e^(-)toNa Cl^(-)to(1)/(2)Cl_(2)uarr+e^(-) CaCl_(2) is used along with NaCl due to

Assertion: Alcohols cannot be dried by CaCI_(2) . Reason: CaCI_(2) forms solvated molecules with alcohols.

ALLEN-S-BLOCK ELEMENTS -EXERCISE
  1. A wire of an alkaline earth metal X, burnt in air and dipped in water,...

    Text Solution

    |

  2. Which of the following statement is correct for s-block elements:

    Text Solution

    |

  3. One element which is used in flash light in photography, when heated w...

    Text Solution

    |

  4. The s-block hydride with covalent polymeric structure are

    Text Solution

    |

  5. Assertion: Na(2)O(2) is coloured and paramagnetic Reason: Na(2)O(2) ...

    Text Solution

    |

  6. Assertion: KHCO(3) can not be obtained by solvay process. Reason: KH...

    Text Solution

    |

  7. Assertion: Mg can bum in the atmosphere of N(2). Reason: Mg reacts w...

    Text Solution

    |

  8. Assertion: Li(2)SO(4) do not form double salt like alum. Reason: Ato...

    Text Solution

    |

  9. Assertion: Li and Mg shows similar chemical properties. Reason Li an...

    Text Solution

    |

  10. Assertion: NaCI when exposed in air it becomes wet. Reason: NaCI con...

    Text Solution

    |

  11. Assertion: Lithium is most reducing element. Reason: IP of lithium i...

    Text Solution

    |

  12. Assertion: Lithium is the weakest reducing agent among alkali metals. ...

    Text Solution

    |

  13. Assertion: When cement is mixed with water and left as such, it become...

    Text Solution

    |

  14. Assertion: Beryllium is most reducing s-block element Reason: Hydrat...

    Text Solution

    |

  15. Assertion: Halides of Be dissolve in organic solvents Reason: Atomic...

    Text Solution

    |

  16. Assertion: Be has complex formation tendency Reason: Be is s-block e...

    Text Solution

    |

  17. Assertion: Be exhibit photoelectric effect. Reason: Be has least IP ...

    Text Solution

    |

  18. Assertion: In Down's process CaCI(2) and NaF is added with fused NaCI ...

    Text Solution

    |

  19. Assertion: Chlorides of Li, Be and Mg are covalent in nature Reason:...

    Text Solution

    |

  20. Assertion: Barium is not required for normal biological function in hu...

    Text Solution

    |