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Explain how the radii of the alkali meta...

Explain how the radii of the alkali metals vary in the group? Are they obeying the periodic law. 

A

Lithium fluoride is most soluble fluoride (in water)

B

Lithium iodide has maximum covalent character out of all halides

C

Lithium carbonate is least thermally stable carbonate

D

Lithium oxide is most basic oxide

Text Solution

Verified by Experts

The correct Answer is:
B, C
Solubility of
`F^(-)=Leflt NaFlt KF lt RbFlt CsF`
colvanlend character
theremal stability
`=Li_(2)CO_(3)ltNa_(2)CO_(3)ltk_(2)CO_(3)ltltRbCO_(3)ltCs_(2)CO_(3)` basic strenth
`=Li_(2)CO_(3)lt Na_(2)Oltk_(2)Olt Rb_(2)OltCs_(2)O`
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