Choose the correct order of density of the alkali meals:
Choose the correct order of density of the alkali meals:
Option 1 - <p>Li < K < Na < Rb < Cs </p>
Option 2 - <p>Li < Na < K < Rb < Cs </p>
Option 3 - <p>Cs < Rb < K < Na < Li</p>
Option 4 - <p>Li < Na < K < Cs < Rb</p>
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6 months ago
Correct Option - 1
Detailed Solution:
Density of metal a very specific and depends upon many factors.
Li -> 0.53 gm/cm3
Na -> 0.97 gm/cm3
K -> 0.86 gm/cm3
Rb ->1.53 gm/cm3
Cs -> 1.90 gm/cm3
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Li+ has the highest hydration enthalpy.
Hence it is most hydrated
Therefore, Correct order of hydrated radii is Cs+ < Rb+ < K+ < Na+ < Li+
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Chemistry Ncert Solutions Class 11th 2023
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