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.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Assertion is incorrect but Reason is correct

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Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
Lithium ion and its compounds are heavily hydrated due to small size of $L i^{+}$ ion and it easily polarizes the water molecules than other alkali metals.

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Assertion :The lithium-ion itself, and also its compounds, are more heavily hydrated than those of the rest of the group members. Reason: The Li+ is smallest among alkali metals and polarise water molecules more easily than the other alkali metal ions.

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for AssertionLithium ion and its compounds are heavily hydrated due to small size of Li+ ion and it easily polarizes the water molecules than other alkali metals.

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.

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
Lithium ion and its compounds are heavily hydrated due to small size of $L i^{+}$ ion and it easily polarizes the water molecules than other alkali metals.