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Consider the following abbreviations for...

Consider the following abbreviations for hydrated alkali ions `X=[Li(H_(2)O)_(n)]^(+), Y=[K(H_(2)O)_(n)]^(+), Z=[Cs(H_(2)O)_(n)]^(+)`
Which is the correct order of size of these hydrated alkali ions

A

`XgtYgtZ`

B

`ZgtYgtX`

C

X = Y = Z

D

`ZgtXgtY`

Text Solution

Verified by Experts

The correct Answer is:
A
The smaller the cation, the greater is the degree of hydration, hence the degree of hydration decreases from `Li^(+)" to "Cs^(+)`.
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