Ca হ্যালোইডের গলনাংক ক্রম

Created: 2 years ago | Updated: 6 months ago

Updated: 6 months ago

C a F_{2} > C a C l_{2} > C a B r_{2} > C a l_{2}

C a l_{2} > C a B r_{2} > C a C l_{2} > C a F_{2}

C a l_{2} > > C a C l_{2} > C a B r_{2} > C a F_{2}

C a C l_{2} > C a l_{2} > C a B r_{2} > C a F_{2}

ব্যাখ্যা

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Best Ans:

The correct order of melting point for Calcium Halides is:

CaF2 > CaCl2 > CaBr2 > CaI2

Here's the explanation:

Ionic bonding: Calcium halides are ionic compounds, where Ca²+ cation interacts with F⁻, Cl⁻, Br⁻, or I⁻ anions.
Lattice energy: The melting point of an ionic compound depends on the strength of the ionic bond, which is determined by the lattice energy.
Factors affecting lattice energy:
- Charge of ions: Higher charges on both cation and anion lead to stronger attraction and higher lattice energy. Ca²+ has the same charge in all these compounds.
- Ionic radii: Smaller radii of ions result in a closer packing and stronger electrostatic forces, leading to higher lattice energy. F⁻ has the smallest radius among the halides.

6 months ago

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Sakib Uddin Rony

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