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Based on lattice energy and other consid...

Based on lattice energy and other considerations which one of the following alkali metal chlorides is expected to have the highest melting point

A

LiCI

B

NaCI

C

KCI

D

RbC

Text Solution

Verified by Experts

The correct Answer is:
B
Among the chlorides of alkali metals the melting point is expected to decreases due to the decrease in the magnitude of lattice enthalpy because cationic size decreases. But m.p. of LiCI is less than that of NaCI because of covalent character.
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DINESH PUBLICATION-S-BLOCK ELEMENTS (ALKALI AND ALKALINE EARTH METALS )-JEE MAIN
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  6. White heavy precipitates are formed when BaCl(2) is added to a clear s...

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  7. Which will liberate hydrogen on reacting with hydrochloric acid ?

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  8. A metal X on heating in nitrogen gas gives Y,Y on treatment with H(2)O...

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  9. Formula of gypsum is CaSO(4).xH(2) and of plaster of parts is (2CaSO(4...

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  10. The substance not likely to contain CaCO(3) is:

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  11. The ionic mobility of alkali metal ions in aqueous solution is maximum...

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  12. The charge/size ratio of a cation determines its polarising power. Whi...

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  13. The set representing the correct order of ionic radius is

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  14. Which of the following on thermal decomposition yields a basic as wel ...

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  15. The correct statement for the molecule, CsI(3) is

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  16. A metallic oxide reacts with water to form its hydroxide hydrogen pero...

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  17. Monovalent sodium and postassium ions, bivalent magnesium and calcium ...

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  18. Amongest the following, select the element, with highest ionization en...

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  19. Which one of the following alkaline earth metal sulphates has its hydr...

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  20. The pair of compounds which cannot exist in solution is:

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