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Which of the following ionic solids has ...

Which of the following ionic solids has the lowest melting point?

A

`KCl`

B

`NaCl`

C

`LiF`

D

`LiCl`

Text Solution

Verified by Experts

The correct Answer is:
D
In spite of high lattice enthalpy, `LiCl(828 kJ mol^(-1))` has low melting point `(610^@C)` due to covalent character. LiF has the highest melting point `(845^@C)` due to maximum `Delta_(Lat tice)H`. Others are `NaCl(788 kJ mol^(-1), 801^@C)` and `KCl(699 kJ mol^(-1), 772^@C)`.
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R SHARMA-CHEMICAL BONDING-Follow-up Test 2
  1. Which of the following polar solvents has the highest dielectric const...

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  2. Lattice enthalpy is the change in energy that occurs when of an ionic ...

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  3. Which of the following ionic solids has the lowest melting point?

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  4. Most of the monatomic ions of the representative elements are obtained...

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  5. Group 13 elements show less tendency to form ionic compounds than do g...

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  6. No compounds of representative elements are found with ions having cha...

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  7. There is a tendency for the elements of groups 13 to 15 of higher peri...

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  8. The elements fo groups 16 and 17 whose atoms have the largest negative...

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  9. Although the electron gain enthalpy of N(2s^2 2p63) is positive, the N...

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  10. Which of the following cations posses neither noble gas nor pseudo nob...

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  11. Many ions, particulary anions, are polyatomic. The atoms in these ions...

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  12. Cations are usually made from metals and anions are usually made from ...

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  13. Most transition metals from several cations having configurations.

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  14. In forming ions, the atoms of transition metals generally lose the ns ...

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  15. Many transition elements also form 3+ ions by losing one (n-1)d electr...

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  16. In case of transition metals, certain atoms can lose different numbers...

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  17. Many ionic compounds in transition metal ions are colored because of t...

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  18. Aqueous solutions of transition metal cations are also colored. Which ...

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  19. Which of the following catios forms colorless solution?

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  20. Which of the following transition metal catios have noble gas core? ...

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