Home
Class 12
CHEMISTRY
Assertion: M.P of BeCl(2) is less than t...

Assertion: M.P of `BeCl_(2)` is less than that of `MgCl_(2)`, but reverse is true for their thermal stability.
Reason: M.P. and thermal stability of both compounds depend upon their lattice energy.

A

If both assertion and reason are true and the reason is the correct explanation of assertion

B

If both assertion and reason are true and the reason is not the correct explanation of assertion

C

If assertion is false but reason is true

D

If assertion is true but the reason is false

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • s-BLOCK ELEMENTS

    VK JAISWAL ENGLISH|Exercise SUBJECTIVE PROBLEMS|2 Videos

  • s-BLOCK ELEMENTS

    VK JAISWAL ENGLISH|Exercise MATCH THE COLUMN|6 Videos

  • QUALITATIVE INORGANIC ANALYSIS

    VK JAISWAL ENGLISH|Exercise SUBJECTIVE PROBLEMS|4 Videos

  • TYPES OF REACTIONS

    VK JAISWAL ENGLISH|Exercise SUBJECTIVE PROBLEMS|42 Videos

Similar Questions

Explore conceptually related problems

Assertion: ionisation energy of sulphur is less than that of phosphorus. Reason: Half filled p-orbitals have extra stability.

Show that P(n): 3^(n) is less than 15 is true for n ne 2

Assertion :- Bond energy of F_2 is less than Cl_2 . Reason :- Bond length of F_2 is smaller than Cl_2 .

Assertion (A) N_(2) is less reactive than P_(4) . Reason (R ) Nitrogen has more electron gain enthalpy then phosphorus.

Assertion : 2.5 mu m or less than 2.5 mu m size of SPM is harmful for health. Reason : Large particles are filtered by nasal cavity & throat

Assertion H_(2),Li_(2),B_(2) each has a bond order of 1 and hence are equally stable Reasoning Stability of molecule//ion depends only on bond order .

Assertion MgCl_(2) is more soluble as comared to BeCl_(2) Reasoning BeCl_(2) is covalent and MgCl_(2) is ionic compound .

Assertion (A) o-nitrophenol is less soluble in water than the m and p-isomers. Reason (R) m and p-nitrophenols exist as associated molecules.

Assertion: The first ionisation energy of Be is greater than that of B . Reason: 2p-orbital is lower in energy than 2s-orbital.

Assertion: The first ionization energy of Be is greater than that of B. Reason: 2p-orbital is lower in energy than 2s-orbital.

VK JAISWAL ENGLISH-s-BLOCK ELEMENTS-ASSERTION-REASON TYPE QUESTIONS
  1. Assertion: CsI is sparingly soluble in water Reason: Hydration ener...

    Text Solution

    |

  2. Assertion : Potassium is not obtained by the electrolysis of fused KCl...

    Text Solution

    |

  3. Assertion: M.P of BeCl(2) is less than that of MgCl(2), but reverse is...

    Text Solution

    |

  4. Inspite of very high ionisation energy, lithium is the strongest reduc...

    Text Solution

    |

  5. Assertion: Li(2)SO(4) does not form double salt like alum Reason: Li...

    Text Solution

    |

  6. Assertion: BeCi(2) cannot be easily hydrolysed. Reason: BeCl(2) is el...

    Text Solution

    |

  7. Assertion: K^(+) and NH(4)^(+) ions have many similarities in their te...

    Text Solution

    |

  8. Assertion: Alums are crystalline double salts, which are soluble in wa...

    Text Solution

    |

  9. Assertion: Mg gets oxidised when heated in CO(2) atmosphere. Reason:...

    Text Solution

    |

  10. Assertion: Mg^(2+)+ZnSO(4) to MgSO(4)+Zn^(2+) Reason: More active me...

    Text Solution

    |

  11. Assertion: Li resembles with Mg in properties Reason: Li^(+) has alm...

    Text Solution

    |

  12. Assertion: Be(OH)(2) dissolves in excess NaOH solution. Reason: Be(O...

    Text Solution

    |

  13. Assertion: SO(4)^(2-) is estimated as BaSO(4) but not as MgSO(4) Re...

    Text Solution

    |

  14. The densities of alkaline earth metals are much smaller than those of ...

    Text Solution

    |

  15. Assertion: Be and Mg do not impat characteristic colour to the flame. ...

    Text Solution

    |

  16. Assertion: Among hydroxides of alkali metals, LiOH is the weakest base...

    Text Solution

    |

  17. Assertion: BaSO(4) is insoluble in water. Reason: Lattice energy of ...

    Text Solution

    |

  18. Assertion: CsI is sparingly soluble in water Reason: Hydration ener...

    Text Solution

    |

  19. Assertion : Potassium is not obtained by the electrolysis of fused KCl...

    Text Solution

    |

  20. Assertion: M.P of BeCl(2) is less than that of MgCl(2), but reverse is...

    Text Solution

    |