MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Uses of metals and nonmetals

Why are lithi...

Question

Why are lithium salts commonly hydrated and these of the other alkali ions usually anhydrous?

Open in App

Solution

Dear student!
Due to the smallest size of Li⁺ ion amongst all the alkali metals it can easily attract the water molecule and get that polarized as a result the water molecules get attached to the lithium-cations and the product formed contains water of crystallization.
But the other alkali metal cations have larger size and so they do not get hydrated and form anhydrous compounds.

Suggest Corrections

thumbs-up

0

Similar questions

Why are lithium salts commonly hydrated and those of the other alkali metal ions usually anhydrous?

Q. Assertion :Lithium salts are mostly hydrated. Reason: The hydration enthalpies of alkali metal ions decrease with increase in ionic sizes.

Q. Consider the following statements:
1.

C s^{+}

is more highly hydrated than the other alkali metal ions.
2. Among the alkali metals

L i, N a, K

R b

, lithium has the highest melting point.
3. Among the alkali metals only lithium forms a stable nitride by direct combination.
Out of these statements:

Q. Are all the hydrated salts crystalline? What are anhydrous salts?

Q. Assertion :The lithium-ion itself, and also its compounds, are more heavily hydrated than those of the rest of the group members. Reason: The

L i^{+}

is smallest among alkali metals and polarise water molecules more easily than the other alkali metal ions.

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

CHEMISTRY

Watch in App

explore_more_icon

Explore more

Uses of metals and nonmetals

Standard VIII Chemistry

Join BYJU'S Learning Program

CrossIcon